Home / 445,318.12-666,869.70-311,572.24

Finding the Fourth Proportional to 445,318.12, 666,869.70 and 311,572.24

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Solution

The fourth proportional to 445,318.12, 666,869.70 and 311,572.24 is: 466,583.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,318.12 : 666,869.70 = 311,572.24 : x
  2. Step 2: Convert to fraction form
    445,318.12/666,869.70 = 311,572.24/x
  3. Step 3: Cross multiply
    445,318.12x = 666,869.70 × 311,572.24
  4. Step 4: Simplify right side
    445,318.12x = 207,778,086,217.13
  5. Step 5: Solve for x
    x = 207,778,086,217.13/445,318.12
  6. Step 6: Final answer
    x = 466,583.50

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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.