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Finding the Fourth Proportional to 657,953.80, 984,962.40 and 579,221.80

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Solution

The fourth proportional to 657,953.80, 984,962.40 and 579,221.80 is: 867,099.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,953.80 : 984,962.40 = 579,221.80 : x
  2. Step 2: Convert to fraction form
    657,953.80/984,962.40 = 579,221.80/x
  3. Step 3: Cross multiply
    657,953.80x = 984,962.40 × 579,221.80
  4. Step 4: Simplify right side
    657,953.80x = 570,511,694,260.32
  5. Step 5: Solve for x
    x = 570,511,694,260.32/657,953.80
  6. Step 6: Final answer
    x = 867,099.93

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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.