Home / 709,000.40-1,063,500.60-443,061.20

Finding the Fourth Proportional to 709,000.40, 1,063,500.60 and 443,061.20

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Solution

The fourth proportional to 709,000.40, 1,063,500.60 and 443,061.20 is: 664,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,000.40 : 1,063,500.60 = 443,061.20 : x
  2. Step 2: Convert to fraction form
    709,000.40/1,063,500.60 = 443,061.20/x
  3. Step 3: Cross multiply
    709,000.40x = 1,063,500.60 × 443,061.20
  4. Step 4: Simplify right side
    709,000.40x = 471,195,852,036.72
  5. Step 5: Solve for x
    x = 471,195,852,036.72/709,000.40
  6. Step 6: Final answer
    x = 664,591.80

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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.