Home / 724,102.90-1,086,543.15-303,421.30

Finding the Fourth Proportional to 724,102.90, 1,086,543.15 and 303,421.30

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Solution

The fourth proportional to 724,102.90, 1,086,543.15 and 303,421.30 is: 455,294.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,102.90 : 1,086,543.15 = 303,421.30 : x
  2. Step 2: Convert to fraction form
    724,102.90/1,086,543.15 = 303,421.30/x
  3. Step 3: Cross multiply
    724,102.90x = 1,086,543.15 × 303,421.30
  4. Step 4: Simplify right side
    724,102.90x = 329,680,335,079.10
  5. Step 5: Solve for x
    x = 329,680,335,079.10/724,102.90
  6. Step 6: Final answer
    x = 455,294.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.