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Finding the Fourth Proportional to 458,306.60, 687,459.90 and 333,890.60

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Solution

The fourth proportional to 458,306.60, 687,459.90 and 333,890.60 is: 500,835.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,306.60 : 687,459.90 = 333,890.60 : x
  2. Step 2: Convert to fraction form
    458,306.60/687,459.90 = 333,890.60/x
  3. Step 3: Cross multiply
    458,306.60x = 687,459.90 × 333,890.60
  4. Step 4: Simplify right side
    458,306.60x = 229,536,398,486.94
  5. Step 5: Solve for x
    x = 229,536,398,486.94/458,306.60
  6. Step 6: Final answer
    x = 500,835.90

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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.