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Finding the Fourth Proportional to 656,246.40, 984,369.60 and 372,811.20

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Solution

The fourth proportional to 656,246.40, 984,369.60 and 372,811.20 is: 559,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,246.40 : 984,369.60 = 372,811.20 : x
  2. Step 2: Convert to fraction form
    656,246.40/984,369.60 = 372,811.20/x
  3. Step 3: Cross multiply
    656,246.40x = 984,369.60 × 372,811.20
  4. Step 4: Simplify right side
    656,246.40x = 366,984,011,819.52
  5. Step 5: Solve for x
    x = 366,984,011,819.52/656,246.40
  6. Step 6: Final answer
    x = 559,216.80

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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.