Home / 972,401.97-1,342,049.97-542,709.78

Finding the Fourth Proportional to 972,401.97, 1,342,049.97 and 542,709.78

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Solution

The fourth proportional to 972,401.97, 1,342,049.97 and 542,709.78 is: 749,014.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    972,401.97 : 1,342,049.97 = 542,709.78 : x
  2. Step 2: Convert to fraction form
    972,401.97/1,342,049.97 = 542,709.78/x
  3. Step 3: Cross multiply
    972,401.97x = 1,342,049.97 × 542,709.78
  4. Step 4: Simplify right side
    972,401.97x = 728,343,643,967.71
  5. Step 5: Solve for x
    x = 728,343,643,967.71/972,401.97
  6. Step 6: Final answer
    x = 749,014.98

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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.