Home / 863,417.80-1,295,126.70-726,560.20

Finding the Fourth Proportional to 863,417.80, 1,295,126.70 and 726,560.20

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Solution

The fourth proportional to 863,417.80, 1,295,126.70 and 726,560.20 is: 1,089,840.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,417.80 : 1,295,126.70 = 726,560.20 : x
  2. Step 2: Convert to fraction form
    863,417.80/1,295,126.70 = 726,560.20/x
  3. Step 3: Cross multiply
    863,417.80x = 1,295,126.70 × 726,560.20
  4. Step 4: Simplify right side
    863,417.80x = 940,987,514,177.34
  5. Step 5: Solve for x
    x = 940,987,514,177.34/863,417.80
  6. Step 6: Final answer
    x = 1,089,840.30

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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.