Home / 1,249,769.88-1,725,135.30-820,189.08

Finding the Fourth Proportional to 1,249,769.88, 1,725,135.30 and 820,189.08

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Solution

The fourth proportional to 1,249,769.88, 1,725,135.30 and 820,189.08 is: 1,132,158.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,769.88 : 1,725,135.30 = 820,189.08 : x
  2. Step 2: Convert to fraction form
    1,249,769.88/1,725,135.30 = 820,189.08/x
  3. Step 3: Cross multiply
    1,249,769.88x = 1,725,135.30 × 820,189.08
  4. Step 4: Simplify right side
    1,249,769.88x = 1,414,937,134,582.52
  5. Step 5: Solve for x
    x = 1,414,937,134,582.52/1,249,769.88
  6. Step 6: Final answer
    x = 1,132,158.13

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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.