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Finding the Fourth Proportional to 499,479.20, 749,218.80 and 410,832.80

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Solution

The fourth proportional to 499,479.20, 749,218.80 and 410,832.80 is: 616,249.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,479.20 : 749,218.80 = 410,832.80 : x
  2. Step 2: Convert to fraction form
    499,479.20/749,218.80 = 410,832.80/x
  3. Step 3: Cross multiply
    499,479.20x = 749,218.80 × 410,832.80
  4. Step 4: Simplify right side
    499,479.20x = 307,803,657,416.64
  5. Step 5: Solve for x
    x = 307,803,657,416.64/499,479.20
  6. Step 6: Final answer
    x = 616,249.20

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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.