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Finding the Fourth Proportional to 499,523.60, 749,285.40 and 347,308.40

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Solution

The fourth proportional to 499,523.60, 749,285.40 and 347,308.40 is: 520,962.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,523.60 : 749,285.40 = 347,308.40 : x
  2. Step 2: Convert to fraction form
    499,523.60/749,285.40 = 347,308.40/x
  3. Step 3: Cross multiply
    499,523.60x = 749,285.40 × 347,308.40
  4. Step 4: Simplify right side
    499,523.60x = 260,233,113,417.36
  5. Step 5: Solve for x
    x = 260,233,113,417.36/499,523.60
  6. Step 6: Final answer
    x = 520,962.60

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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.