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Finding the Fourth Proportional to 508,909.60, 763,364.40 and 497,245.60

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Solution

The fourth proportional to 508,909.60, 763,364.40 and 497,245.60 is: 745,868.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,909.60 : 763,364.40 = 497,245.60 : x
  2. Step 2: Convert to fraction form
    508,909.60/763,364.40 = 497,245.60/x
  3. Step 3: Cross multiply
    508,909.60x = 763,364.40 × 497,245.60
  4. Step 4: Simplify right side
    508,909.60x = 379,579,589,096.64
  5. Step 5: Solve for x
    x = 379,579,589,096.64/508,909.60
  6. Step 6: Final answer
    x = 745,868.40

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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.