Home / 898,525.76-1,239,964.80-516,627.20

Finding the Fourth Proportional to 898,525.76, 1,239,964.80 and 516,627.20

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Solution

The fourth proportional to 898,525.76, 1,239,964.80 and 516,627.20 is: 712,945.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,525.76 : 1,239,964.80 = 516,627.20 : x
  2. Step 2: Convert to fraction form
    898,525.76/1,239,964.80 = 516,627.20/x
  3. Step 3: Cross multiply
    898,525.76x = 1,239,964.80 × 516,627.20
  4. Step 4: Simplify right side
    898,525.76x = 640,599,542,722.56
  5. Step 5: Solve for x
    x = 640,599,542,722.56/898,525.76
  6. Step 6: Final answer
    x = 712,945.11

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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.