Home / 724,874.40-1,000,350-402,588.36

Finding the Fourth Proportional to 724,874.40, 1,000,350 and 402,588.36

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Solution

The fourth proportional to 724,874.40, 1,000,350 and 402,588.36 is: 555,584.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,874.40 : 1,000,350 = 402,588.36 : x
  2. Step 2: Convert to fraction form
    724,874.40/1,000,350 = 402,588.36/x
  3. Step 3: Cross multiply
    724,874.40x = 1,000,350 × 402,588.36
  4. Step 4: Simplify right side
    724,874.40x = 402,729,265,926
  5. Step 5: Solve for x
    x = 402,729,265,926/724,874.40
  6. Step 6: Final answer
    x = 555,584.89

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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.