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Finding the Fourth Proportional to 657,025.20, 987,611.40 and 607,258.80

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Solution

The fourth proportional to 657,025.20, 987,611.40 and 607,258.80 is: 912,804.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,025.20 : 987,611.40 = 607,258.80 : x
  2. Step 2: Convert to fraction form
    657,025.20/987,611.40 = 607,258.80/x
  3. Step 3: Cross multiply
    657,025.20x = 987,611.40 × 607,258.80
  4. Step 4: Simplify right side
    657,025.20x = 599,735,713,630.32
  5. Step 5: Solve for x
    x = 599,735,713,630.32/657,025.20
  6. Step 6: Final answer
    x = 912,804.74

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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.