Home / 818,932.76-1,129,525.64-542,791.20

Finding the Fourth Proportional to 818,932.76, 1,129,525.64 and 542,791.20

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Solution

The fourth proportional to 818,932.76, 1,129,525.64 and 542,791.20 is: 748,653.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,932.76 : 1,129,525.64 = 542,791.20 : x
  2. Step 2: Convert to fraction form
    818,932.76/1,129,525.64 = 542,791.20/x
  3. Step 3: Cross multiply
    818,932.76x = 1,129,525.64 × 542,791.20
  4. Step 4: Simplify right side
    818,932.76x = 613,096,577,566.37
  5. Step 5: Solve for x
    x = 613,096,577,566.37/818,932.76
  6. Step 6: Final answer
    x = 748,653.13

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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.