Home / 724,845.72-1,000,787.49-453,035.78

Finding the Fourth Proportional to 724,845.72, 1,000,787.49 and 453,035.78

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Solution

The fourth proportional to 724,845.72, 1,000,787.49 and 453,035.78 is: 625,502.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,845.72 : 1,000,787.49 = 453,035.78 : x
  2. Step 2: Convert to fraction form
    724,845.72/1,000,787.49 = 453,035.78/x
  3. Step 3: Cross multiply
    724,845.72x = 1,000,787.49 × 453,035.78
  4. Step 4: Simplify right side
    724,845.72x = 453,392,536,142.46
  5. Step 5: Solve for x
    x = 453,392,536,142.46/724,845.72
  6. Step 6: Final answer
    x = 625,502.12

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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.