Home / 724,813.62-1,000,256.34-402,553.90

Finding the Fourth Proportional to 724,813.62, 1,000,256.34 and 402,553.90

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Solution

The fourth proportional to 724,813.62, 1,000,256.34 and 402,553.90 is: 555,531.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,813.62 : 1,000,256.34 = 402,553.90 : x
  2. Step 2: Convert to fraction form
    724,813.62/1,000,256.34 = 402,553.90/x
  3. Step 3: Cross multiply
    724,813.62x = 1,000,256.34 × 402,553.90
  4. Step 4: Simplify right side
    724,813.62x = 402,657,090,666.73
  5. Step 5: Solve for x
    x = 402,657,090,666.73/724,813.62
  6. Step 6: Final answer
    x = 555,531.90

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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.