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Finding the Fourth Proportional to 576,689.92, 864,392.64 and 239,542.72

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Solution

The fourth proportional to 576,689.92, 864,392.64 and 239,542.72 is: 359,047.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,689.92 : 864,392.64 = 239,542.72 : x
  2. Step 2: Convert to fraction form
    576,689.92/864,392.64 = 239,542.72/x
  3. Step 3: Cross multiply
    576,689.92x = 864,392.64 × 239,542.72
  4. Step 4: Simplify right side
    576,689.92x = 207,058,964,133.58
  5. Step 5: Solve for x
    x = 207,058,964,133.58/576,689.92
  6. Step 6: Final answer
    x = 359,047.31

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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.