Home / 771,337.56-1,064,445.84-469,531.56

Finding the Fourth Proportional to 771,337.56, 1,064,445.84 and 469,531.56

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Solution

The fourth proportional to 771,337.56, 1,064,445.84 and 469,531.56 is: 647,953.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,337.56 : 1,064,445.84 = 469,531.56 : x
  2. Step 2: Convert to fraction form
    771,337.56/1,064,445.84 = 469,531.56/x
  3. Step 3: Cross multiply
    771,337.56x = 1,064,445.84 × 469,531.56
  4. Step 4: Simplify right side
    771,337.56x = 499,790,915,790.71
  5. Step 5: Solve for x
    x = 499,790,915,790.71/771,337.56
  6. Step 6: Final answer
    x = 647,953.56

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.