Home / 724,803.36-1,000,242.20-402,543.66

Finding the Fourth Proportional to 724,803.36, 1,000,242.20 and 402,543.66

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Solution

The fourth proportional to 724,803.36, 1,000,242.20 and 402,543.66 is: 555,517.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,803.36 : 1,000,242.20 = 402,543.66 : x
  2. Step 2: Convert to fraction form
    724,803.36/1,000,242.20 = 402,543.66/x
  3. Step 3: Cross multiply
    724,803.36x = 1,000,242.20 × 402,543.66
  4. Step 4: Simplify right side
    724,803.36x = 402,641,156,074.45
  5. Step 5: Solve for x
    x = 402,641,156,074.45/724,803.36
  6. Step 6: Final answer
    x = 555,517.78

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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.