Home / 456,423.20-684,634.80-207,105.20

Finding the Fourth Proportional to 456,423.20, 684,634.80 and 207,105.20

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Solution

The fourth proportional to 456,423.20, 684,634.80 and 207,105.20 is: 310,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,423.20 : 684,634.80 = 207,105.20 : x
  2. Step 2: Convert to fraction form
    456,423.20/684,634.80 = 207,105.20/x
  3. Step 3: Cross multiply
    456,423.20x = 684,634.80 × 207,105.20
  4. Step 4: Simplify right side
    456,423.20x = 141,791,427,180.96
  5. Step 5: Solve for x
    x = 141,791,427,180.96/456,423.20
  6. Step 6: Final answer
    x = 310,657.80

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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.