Home / 1,386,311.34-2,078,577.13-577,256.61

Finding the Fourth Proportional to 1,386,311.34, 2,078,577.13 and 577,256.61

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Solution

The fourth proportional to 1,386,311.34, 2,078,577.13 and 577,256.61 is: 865,514.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,311.34 : 2,078,577.13 = 577,256.61 : x
  2. Step 2: Convert to fraction form
    1,386,311.34/2,078,577.13 = 577,256.61/x
  3. Step 3: Cross multiply
    1,386,311.34x = 2,078,577.13 × 577,256.61
  4. Step 4: Simplify right side
    1,386,311.34x = 1,199,872,387,687.33
  5. Step 5: Solve for x
    x = 1,199,872,387,687.33/1,386,311.34
  6. Step 6: Final answer
    x = 865,514.37

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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.