Home / 991,010.10-1,486,515.15-985,105.20

Finding the Fourth Proportional to 991,010.10, 1,486,515.15 and 985,105.20

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Solution

The fourth proportional to 991,010.10, 1,486,515.15 and 985,105.20 is: 1,477,657.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,010.10 : 1,486,515.15 = 985,105.20 : x
  2. Step 2: Convert to fraction form
    991,010.10/1,486,515.15 = 985,105.20/x
  3. Step 3: Cross multiply
    991,010.10x = 1,486,515.15 × 985,105.20
  4. Step 4: Simplify right side
    991,010.10x = 1,464,373,804,143.78
  5. Step 5: Solve for x
    x = 1,464,373,804,143.78/991,010.10
  6. Step 6: Final answer
    x = 1,477,657.80

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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.