Home / 747,736.32-1,031,861.76-408,206.72

Finding the Fourth Proportional to 747,736.32, 1,031,861.76 and 408,206.72

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Solution

The fourth proportional to 747,736.32, 1,031,861.76 and 408,206.72 is: 563,317.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,736.32 : 1,031,861.76 = 408,206.72 : x
  2. Step 2: Convert to fraction form
    747,736.32/1,031,861.76 = 408,206.72/x
  3. Step 3: Cross multiply
    747,736.32x = 1,031,861.76 × 408,206.72
  4. Step 4: Simplify right side
    747,736.32x = 421,212,904,543.03
  5. Step 5: Solve for x
    x = 421,212,904,543.03/747,736.32
  6. Step 6: Final answer
    x = 563,317.43

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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.