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Finding the Fourth Proportional to 598,902.30, 898,353.45 and 386,325.90

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Solution

The fourth proportional to 598,902.30, 898,353.45 and 386,325.90 is: 579,488.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,902.30 : 898,353.45 = 386,325.90 : x
  2. Step 2: Convert to fraction form
    598,902.30/898,353.45 = 386,325.90/x
  3. Step 3: Cross multiply
    598,902.30x = 898,353.45 × 386,325.90
  4. Step 4: Simplify right side
    598,902.30x = 347,057,205,089.36
  5. Step 5: Solve for x
    x = 347,057,205,089.36/598,902.30
  6. Step 6: Final answer
    x = 579,488.85

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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.