Home / 724,841.73-1,000,190.97-402,507.90

Finding the Fourth Proportional to 724,841.73, 1,000,190.97 and 402,507.90

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Solution

The fourth proportional to 724,841.73, 1,000,190.97 and 402,507.90 is: 555,410.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,841.73 : 1,000,190.97 = 402,507.90 : x
  2. Step 2: Convert to fraction form
    724,841.73/1,000,190.97 = 402,507.90/x
  3. Step 3: Cross multiply
    724,841.73x = 1,000,190.97 × 402,507.90
  4. Step 4: Simplify right side
    724,841.73x = 402,584,766,933.66
  5. Step 5: Solve for x
    x = 402,584,766,933.66/724,841.73
  6. Step 6: Final answer
    x = 555,410.58

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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.