Home / 1,053,789.80-1,454,265.15-645,812.82

Finding the Fourth Proportional to 1,053,789.80, 1,454,265.15 and 645,812.82

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Solution

The fourth proportional to 1,053,789.80, 1,454,265.15 and 645,812.82 is: 891,243.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,789.80 : 1,454,265.15 = 645,812.82 : x
  2. Step 2: Convert to fraction form
    1,053,789.80/1,454,265.15 = 645,812.82/x
  3. Step 3: Cross multiply
    1,053,789.80x = 1,454,265.15 × 645,812.82
  4. Step 4: Simplify right side
    1,053,789.80x = 939,183,077,549.22
  5. Step 5: Solve for x
    x = 939,183,077,549.22/1,053,789.80
  6. Step 6: Final answer
    x = 891,243.28

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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.