Home / 456,422.60-684,731.10-140,911.40

Finding the Fourth Proportional to 456,422.60, 684,731.10 and 140,911.40

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Solution

The fourth proportional to 456,422.60, 684,731.10 and 140,911.40 is: 211,397.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,422.60 : 684,731.10 = 140,911.40 : x
  2. Step 2: Convert to fraction form
    456,422.60/684,731.10 = 140,911.40/x
  3. Step 3: Cross multiply
    456,422.60x = 684,731.10 × 140,911.40
  4. Step 4: Simplify right side
    456,422.60x = 96,486,417,924.54
  5. Step 5: Solve for x
    x = 96,486,417,924.54/456,422.60
  6. Step 6: Final answer
    x = 211,397.11

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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.