Home / 771,125.24-1,064,376.78-469,865.72

Finding the Fourth Proportional to 771,125.24, 1,064,376.78 and 469,865.72

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Solution

The fourth proportional to 771,125.24, 1,064,376.78 and 469,865.72 is: 648,551.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,125.24 : 1,064,376.78 = 469,865.72 : x
  2. Step 2: Convert to fraction form
    771,125.24/1,064,376.78 = 469,865.72/x
  3. Step 3: Cross multiply
    771,125.24x = 1,064,376.78 × 469,865.72
  4. Step 4: Simplify right side
    771,125.24x = 500,114,162,085.98
  5. Step 5: Solve for x
    x = 500,114,162,085.98/771,125.24
  6. Step 6: Final answer
    x = 648,551.15

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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.