Home / 658,300.20-987,450.30-623,308.20

Finding the Fourth Proportional to 658,300.20, 987,450.30 and 623,308.20

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Solution

The fourth proportional to 658,300.20, 987,450.30 and 623,308.20 is: 934,962.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,300.20 : 987,450.30 = 623,308.20 : x
  2. Step 2: Convert to fraction form
    658,300.20/987,450.30 = 623,308.20/x
  3. Step 3: Cross multiply
    658,300.20x = 987,450.30 × 623,308.20
  4. Step 4: Simplify right side
    658,300.20x = 615,485,869,082.46
  5. Step 5: Solve for x
    x = 615,485,869,082.46/658,300.20
  6. Step 6: Final answer
    x = 934,962.30

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Half scale
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Double scale
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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.