Home / 1,100,546.30-1,650,819.45-781,681.70

Finding the Fourth Proportional to 1,100,546.30, 1,650,819.45 and 781,681.70

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Solution

The fourth proportional to 1,100,546.30, 1,650,819.45 and 781,681.70 is: 1,172,522.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,546.30 : 1,650,819.45 = 781,681.70 : x
  2. Step 2: Convert to fraction form
    1,100,546.30/1,650,819.45 = 781,681.70/x
  3. Step 3: Cross multiply
    1,100,546.30x = 1,650,819.45 × 781,681.70
  4. Step 4: Simplify right side
    1,100,546.30x = 1,290,415,354,069.07
  5. Step 5: Solve for x
    x = 1,290,415,354,069.07/1,100,546.30
  6. Step 6: Final answer
    x = 1,172,522.55

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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.