Home / 972,400.46-1,342,047.87-542,708.28

Finding the Fourth Proportional to 972,400.46, 1,342,047.87 and 542,708.28

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Solution

The fourth proportional to 972,400.46, 1,342,047.87 and 542,708.28 is: 749,012.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,400.46 : 1,342,047.87 = 542,708.28 : x
  2. Step 2: Convert to fraction form
    972,400.46/1,342,047.87 = 542,708.28/x
  3. Step 3: Cross multiply
    972,400.46x = 1,342,047.87 × 542,708.28
  4. Step 4: Simplify right side
    972,400.46x = 728,340,491,205.36
  5. Step 5: Solve for x
    x = 728,340,491,205.36/972,400.46
  6. Step 6: Final answer
    x = 749,012.91

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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.