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Finding the Fourth Proportional to 499,364.70, 749,047.05 and 331,403.10

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Solution

The fourth proportional to 499,364.70, 749,047.05 and 331,403.10 is: 497,104.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,364.70 : 749,047.05 = 331,403.10 : x
  2. Step 2: Convert to fraction form
    499,364.70/749,047.05 = 331,403.10/x
  3. Step 3: Cross multiply
    499,364.70x = 749,047.05 × 331,403.10
  4. Step 4: Simplify right side
    499,364.70x = 248,236,514,415.86
  5. Step 5: Solve for x
    x = 248,236,514,415.86/499,364.70
  6. Step 6: Final answer
    x = 497,104.65

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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.