Home / 1,270,617.28-1,754,272.40-787,698.52

Finding the Fourth Proportional to 1,270,617.28, 1,754,272.40 and 787,698.52

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Solution

The fourth proportional to 1,270,617.28, 1,754,272.40 and 787,698.52 is: 1,087,532.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,270,617.28 : 1,754,272.40 = 787,698.52 : x
  2. Step 2: Convert to fraction form
    1,270,617.28/1,754,272.40 = 787,698.52/x
  3. Step 3: Cross multiply
    1,270,617.28x = 1,754,272.40 × 787,698.52
  4. Step 4: Simplify right side
    1,270,617.28x = 1,381,837,773,156.85
  5. Step 5: Solve for x
    x = 1,381,837,773,156.85/1,270,617.28
  6. Step 6: Final answer
    x = 1,087,532.65

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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.