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Finding the Fourth Proportional to 458,697.70, 688,046.55 and 364,219.30

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Solution

The fourth proportional to 458,697.70, 688,046.55 and 364,219.30 is: 546,328.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,697.70 : 688,046.55 = 364,219.30 : x
  2. Step 2: Convert to fraction form
    458,697.70/688,046.55 = 364,219.30/x
  3. Step 3: Cross multiply
    458,697.70x = 688,046.55 × 364,219.30
  4. Step 4: Simplify right side
    458,697.70x = 250,599,832,808.42
  5. Step 5: Solve for x
    x = 250,599,832,808.42/458,697.70
  6. Step 6: Final answer
    x = 546,328.95

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Similar ratio
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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.