Home / 781,448.68-1,078,422.66-441,910.12

Finding the Fourth Proportional to 781,448.68, 1,078,422.66 and 441,910.12

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Solution

The fourth proportional to 781,448.68, 1,078,422.66 and 441,910.12 is: 609,849.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,448.68 : 1,078,422.66 = 441,910.12 : x
  2. Step 2: Convert to fraction form
    781,448.68/1,078,422.66 = 441,910.12/x
  3. Step 3: Cross multiply
    781,448.68x = 1,078,422.66 × 441,910.12
  4. Step 4: Simplify right side
    781,448.68x = 476,565,887,091.32
  5. Step 5: Solve for x
    x = 476,565,887,091.32/781,448.68
  6. Step 6: Final answer
    x = 609,849.24

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Double scale
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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.