Home / 485,308.14-727,518.69-410,907.66

Finding the Fourth Proportional to 485,308.14, 727,518.69 and 410,907.66

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Solution

The fourth proportional to 485,308.14, 727,518.69 and 410,907.66 is: 615,985.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,308.14 : 727,518.69 = 410,907.66 : x
  2. Step 2: Convert to fraction form
    485,308.14/727,518.69 = 410,907.66/x
  3. Step 3: Cross multiply
    485,308.14x = 727,518.69 × 410,907.66
  4. Step 4: Simplify right side
    485,308.14x = 298,943,002,514.17
  5. Step 5: Solve for x
    x = 298,943,002,514.17/485,308.14
  6. Step 6: Final answer
    x = 615,985.96

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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.