Home / 447,921.32-618,126.18-243,971.60

Finding the Fourth Proportional to 447,921.32, 618,126.18 and 243,971.60

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Solution

The fourth proportional to 447,921.32, 618,126.18 and 243,971.60 is: 336,677.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,921.32 : 618,126.18 = 243,971.60 : x
  2. Step 2: Convert to fraction form
    447,921.32/618,126.18 = 243,971.60/x
  3. Step 3: Cross multiply
    447,921.32x = 618,126.18 × 243,971.60
  4. Step 4: Simplify right side
    447,921.32x = 150,805,230,045.86
  5. Step 5: Solve for x
    x = 150,805,230,045.86/447,921.32
  6. Step 6: Final answer
    x = 336,677.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.