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Finding the Fourth Proportional to 656,454.40, 984,681.60 and 375,740.80

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Solution

The fourth proportional to 656,454.40, 984,681.60 and 375,740.80 is: 563,611.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,454.40 : 984,681.60 = 375,740.80 : x
  2. Step 2: Convert to fraction form
    656,454.40/984,681.60 = 375,740.80/x
  3. Step 3: Cross multiply
    656,454.40x = 984,681.60 × 375,740.80
  4. Step 4: Simplify right side
    656,454.40x = 369,985,052,129.28
  5. Step 5: Solve for x
    x = 369,985,052,129.28/656,454.40
  6. Step 6: Final answer
    x = 563,611.20

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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.