Home / 991,011.60-1,486,517.40-985,106.70

Finding the Fourth Proportional to 991,011.60, 1,486,517.40 and 985,106.70

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Solution

The fourth proportional to 991,011.60, 1,486,517.40 and 985,106.70 is: 1,477,660.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,011.60 : 1,486,517.40 = 985,106.70 : x
  2. Step 2: Convert to fraction form
    991,011.60/1,486,517.40 = 985,106.70/x
  3. Step 3: Cross multiply
    991,011.60x = 1,486,517.40 × 985,106.70
  4. Step 4: Simplify right side
    991,011.60x = 1,464,378,250,406.58
  5. Step 5: Solve for x
    x = 1,464,378,250,406.58/991,011.60
  6. Step 6: Final answer
    x = 1,477,660.05

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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.