Home / 1,128,562.80-1,692,844.20-329,812.08

Finding the Fourth Proportional to 1,128,562.80, 1,692,844.20 and 329,812.08

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Solution

The fourth proportional to 1,128,562.80, 1,692,844.20 and 329,812.08 is: 494,718.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,128,562.80 : 1,692,844.20 = 329,812.08 : x
  2. Step 2: Convert to fraction form
    1,128,562.80/1,692,844.20 = 329,812.08/x
  3. Step 3: Cross multiply
    1,128,562.80x = 1,692,844.20 × 329,812.08
  4. Step 4: Simplify right side
    1,128,562.80x = 558,320,466,717.94
  5. Step 5: Solve for x
    x = 558,320,466,717.94/1,128,562.80
  6. Step 6: Final answer
    x = 494,718.12

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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.