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Finding the Fourth Proportional to 658,225.40, 987,338.10 and 606,903.80

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Solution

The fourth proportional to 658,225.40, 987,338.10 and 606,903.80 is: 910,355.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,225.40 : 987,338.10 = 606,903.80 : x
  2. Step 2: Convert to fraction form
    658,225.40/987,338.10 = 606,903.80/x
  3. Step 3: Cross multiply
    658,225.40x = 987,338.10 × 606,903.80
  4. Step 4: Simplify right side
    658,225.40x = 599,219,244,774.78
  5. Step 5: Solve for x
    x = 599,219,244,774.78/658,225.40
  6. Step 6: Final answer
    x = 910,355.70

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Similar ratio
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1.5x scale

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.