Home / 447,029.20-616,891.52-243,078.40

Finding the Fourth Proportional to 447,029.20, 616,891.52 and 243,078.40

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Solution

The fourth proportional to 447,029.20, 616,891.52 and 243,078.40 is: 335,443.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,029.20 : 616,891.52 = 243,078.40 : x
  2. Step 2: Convert to fraction form
    447,029.20/616,891.52 = 243,078.40/x
  3. Step 3: Cross multiply
    447,029.20x = 616,891.52 × 243,078.40
  4. Step 4: Simplify right side
    447,029.20x = 149,953,003,655.17
  5. Step 5: Solve for x
    x = 149,953,003,655.17/447,029.20
  6. Step 6: Final answer
    x = 335,443.42

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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.