Home / 1,270,567.28-1,754,203.40-787,648.52

Finding the Fourth Proportional to 1,270,567.28, 1,754,203.40 and 787,648.52

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Solution

The fourth proportional to 1,270,567.28, 1,754,203.40 and 787,648.52 is: 1,087,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,567.28 : 1,754,203.40 = 787,648.52 : x
  2. Step 2: Convert to fraction form
    1,270,567.28/1,754,203.40 = 787,648.52/x
  3. Step 3: Cross multiply
    1,270,567.28x = 1,754,203.40 × 787,648.52
  4. Step 4: Simplify right side
    1,270,567.28x = 1,381,695,711,788.97
  5. Step 5: Solve for x
    x = 1,381,695,711,788.97/1,270,567.28
  6. Step 6: Final answer
    x = 1,087,463.63

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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.