Home / 636,789.12-878,741.28-350,291.04

Finding the Fourth Proportional to 636,789.12, 878,741.28 and 350,291.04

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Solution

The fourth proportional to 636,789.12, 878,741.28 and 350,291.04 is: 483,386.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,789.12 : 878,741.28 = 350,291.04 : x
  2. Step 2: Convert to fraction form
    636,789.12/878,741.28 = 350,291.04/x
  3. Step 3: Cross multiply
    636,789.12x = 878,741.28 × 350,291.04
  4. Step 4: Simplify right side
    636,789.12x = 307,815,196,862.13
  5. Step 5: Solve for x
    x = 307,815,196,862.13/636,789.12
  6. Step 6: Final answer
    x = 483,386.39

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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.