Home / 1,323,054.40-1,982,077.48-781,691.72

Finding the Fourth Proportional to 1,323,054.40, 1,982,077.48 and 781,691.72

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Solution

The fourth proportional to 1,323,054.40, 1,982,077.48 and 781,691.72 is: 1,171,058.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,054.40 : 1,982,077.48 = 781,691.72 : x
  2. Step 2: Convert to fraction form
    1,323,054.40/1,982,077.48 = 781,691.72/x
  3. Step 3: Cross multiply
    1,323,054.40x = 1,982,077.48 × 781,691.72
  4. Step 4: Simplify right side
    1,323,054.40x = 1,549,373,554,514.47
  5. Step 5: Solve for x
    x = 1,549,373,554,514.47/1,323,054.40
  6. Step 6: Final answer
    x = 1,171,058.09

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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.