Home / 991,257.60-1,486,886.40-940,081.80

Finding the Fourth Proportional to 991,257.60, 1,486,886.40 and 940,081.80

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Solution

The fourth proportional to 991,257.60, 1,486,886.40 and 940,081.80 is: 1,410,122.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,257.60 : 1,486,886.40 = 940,081.80 : x
  2. Step 2: Convert to fraction form
    991,257.60/1,486,886.40 = 940,081.80/x
  3. Step 3: Cross multiply
    991,257.60x = 1,486,886.40 × 940,081.80
  4. Step 4: Simplify right side
    991,257.60x = 1,397,794,843,307.52
  5. Step 5: Solve for x
    x = 1,397,794,843,307.52/991,257.60
  6. Step 6: Final answer
    x = 1,410,122.70

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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.