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Finding the Fourth Proportional to 656,342.40, 984,513.60 and 652,195.20

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Solution

The fourth proportional to 656,342.40, 984,513.60 and 652,195.20 is: 978,292.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,342.40 : 984,513.60 = 652,195.20 : x
  2. Step 2: Convert to fraction form
    656,342.40/984,513.60 = 652,195.20/x
  3. Step 3: Cross multiply
    656,342.40x = 984,513.60 × 652,195.20
  4. Step 4: Simplify right side
    656,342.40x = 642,095,044,254.72
  5. Step 5: Solve for x
    x = 642,095,044,254.72/656,342.40
  6. Step 6: Final answer
    x = 978,292.80

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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.