Home / 766,374.30-1,149,561.45-366,809.40

Finding the Fourth Proportional to 766,374.30, 1,149,561.45 and 366,809.40

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Solution

The fourth proportional to 766,374.30, 1,149,561.45 and 366,809.40 is: 550,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,374.30 : 1,149,561.45 = 366,809.40 : x
  2. Step 2: Convert to fraction form
    766,374.30/1,149,561.45 = 366,809.40/x
  3. Step 3: Cross multiply
    766,374.30x = 1,149,561.45 × 366,809.40
  4. Step 4: Simplify right side
    766,374.30x = 421,669,945,737.63
  5. Step 5: Solve for x
    x = 421,669,945,737.63/766,374.30
  6. Step 6: Final answer
    x = 550,214.10

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.