Home / 576,140.40-794,994.30-321,442.20

Finding the Fourth Proportional to 576,140.40, 794,994.30 and 321,442.20

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Solution

The fourth proportional to 576,140.40, 794,994.30 and 321,442.20 is: 443,545.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,140.40 : 794,994.30 = 321,442.20 : x
  2. Step 2: Convert to fraction form
    576,140.40/794,994.30 = 321,442.20/x
  3. Step 3: Cross multiply
    576,140.40x = 794,994.30 × 321,442.20
  4. Step 4: Simplify right side
    576,140.40x = 255,544,716,779.46
  5. Step 5: Solve for x
    x = 255,544,716,779.46/576,140.40
  6. Step 6: Final answer
    x = 443,545.91

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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.