Home / 1,170,422.52-1,615,314.56-661,157.68

Finding the Fourth Proportional to 1,170,422.52, 1,615,314.56 and 661,157.68

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Solution

The fourth proportional to 1,170,422.52, 1,615,314.56 and 661,157.68 is: 912,471.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,170,422.52 : 1,615,314.56 = 661,157.68 : x
  2. Step 2: Convert to fraction form
    1,170,422.52/1,615,314.56 = 661,157.68/x
  3. Step 3: Cross multiply
    1,170,422.52x = 1,615,314.56 × 661,157.68
  4. Step 4: Simplify right side
    1,170,422.52x = 1,067,977,626,959.82
  5. Step 5: Solve for x
    x = 1,067,977,626,959.82/1,170,422.52
  6. Step 6: Final answer
    x = 912,471.87

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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.