Home / 1,286,534.02-1,929,177.06-387,808.24

Finding the Fourth Proportional to 1,286,534.02, 1,929,177.06 and 387,808.24

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Solution

The fourth proportional to 1,286,534.02, 1,929,177.06 and 387,808.24 is: 581,524.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,534.02 : 1,929,177.06 = 387,808.24 : x
  2. Step 2: Convert to fraction form
    1,286,534.02/1,929,177.06 = 387,808.24/x
  3. Step 3: Cross multiply
    1,286,534.02x = 1,929,177.06 × 387,808.24
  4. Step 4: Simplify right side
    1,286,534.02x = 748,150,760,286.97
  5. Step 5: Solve for x
    x = 748,150,760,286.97/1,286,534.02
  6. Step 6: Final answer
    x = 581,524.27

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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.