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Finding the Fourth Proportional to 657,933.60, 984,567.60 and 447,981.60

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Solution

The fourth proportional to 657,933.60, 984,567.60 and 447,981.60 is: 670,384.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,933.60 : 984,567.60 = 447,981.60 : x
  2. Step 2: Convert to fraction form
    657,933.60/984,567.60 = 447,981.60/x
  3. Step 3: Cross multiply
    657,933.60x = 984,567.60 × 447,981.60
  4. Step 4: Simplify right side
    657,933.60x = 441,068,168,756.16
  5. Step 5: Solve for x
    x = 441,068,168,756.16/657,933.60
  6. Step 6: Final answer
    x = 670,384.02

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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.