Home / 724,972.01-1,000,355.87-402,684.89

Finding the Fourth Proportional to 724,972.01, 1,000,355.87 and 402,684.89

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Solution

The fourth proportional to 724,972.01, 1,000,355.87 and 402,684.89 is: 555,646.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,972.01 : 1,000,355.87 = 402,684.89 : x
  2. Step 2: Convert to fraction form
    724,972.01/1,000,355.87 = 402,684.89/x
  3. Step 3: Cross multiply
    724,972.01x = 1,000,355.87 × 402,684.89
  4. Step 4: Simplify right side
    724,972.01x = 402,828,189,476.74
  5. Step 5: Solve for x
    x = 402,828,189,476.74/724,972.01
  6. Step 6: Final answer
    x = 555,646.54

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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.