Home / 972,422.57-1,342,036.42-542,742.68

Finding the Fourth Proportional to 972,422.57, 1,342,036.42 and 542,742.68

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Solution

The fourth proportional to 972,422.57, 1,342,036.42 and 542,742.68 is: 749,036.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,422.57 : 1,342,036.42 = 542,742.68 : x
  2. Step 2: Convert to fraction form
    972,422.57/1,342,036.42 = 542,742.68/x
  3. Step 3: Cross multiply
    972,422.57x = 1,342,036.42 × 542,742.68
  4. Step 4: Simplify right side
    972,422.57x = 728,380,445,246.64
  5. Step 5: Solve for x
    x = 728,380,445,246.64/972,422.57
  6. Step 6: Final answer
    x = 749,036.96

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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.