Home / 579,343.10-869,079.45-179,980.70

Finding the Fourth Proportional to 579,343.10, 869,079.45 and 179,980.70

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Solution

The fourth proportional to 579,343.10, 869,079.45 and 179,980.70 is: 269,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,343.10 : 869,079.45 = 179,980.70 : x
  2. Step 2: Convert to fraction form
    579,343.10/869,079.45 = 179,980.70/x
  3. Step 3: Cross multiply
    579,343.10x = 869,079.45 × 179,980.70
  4. Step 4: Simplify right side
    579,343.10x = 156,417,527,766.62
  5. Step 5: Solve for x
    x = 156,417,527,766.62/579,343.10
  6. Step 6: Final answer
    x = 269,991.18

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Double scale
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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.