Home / 458,386.20-687,577.68-142,843.32

Finding the Fourth Proportional to 458,386.20, 687,577.68 and 142,843.32

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Solution

The fourth proportional to 458,386.20, 687,577.68 and 142,843.32 is: 214,264.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,386.20 : 687,577.68 = 142,843.32 : x
  2. Step 2: Convert to fraction form
    458,386.20/687,577.68 = 142,843.32/x
  3. Step 3: Cross multiply
    458,386.20x = 687,577.68 × 142,843.32
  4. Step 4: Simplify right side
    458,386.20x = 98,215,878,569.10
  5. Step 5: Solve for x
    x = 98,215,878,569.10/458,386.20
  6. Step 6: Final answer
    x = 214,264.48

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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.