Home / 1,291,218.30-1,936,827.45-392,652.90

Finding the Fourth Proportional to 1,291,218.30, 1,936,827.45 and 392,652.90

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Solution

The fourth proportional to 1,291,218.30, 1,936,827.45 and 392,652.90 is: 588,979.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,291,218.30 : 1,936,827.45 = 392,652.90 : x
  2. Step 2: Convert to fraction form
    1,291,218.30/1,936,827.45 = 392,652.90/x
  3. Step 3: Cross multiply
    1,291,218.30x = 1,936,827.45 × 392,652.90
  4. Step 4: Simplify right side
    1,291,218.30x = 760,500,915,042.11
  5. Step 5: Solve for x
    x = 760,500,915,042.11/1,291,218.30
  6. Step 6: Final answer
    x = 588,979.35

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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.