Home / 991,012.10-1,486,518.15-985,107.20

Finding the Fourth Proportional to 991,012.10, 1,486,518.15 and 985,107.20

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Solution

The fourth proportional to 991,012.10, 1,486,518.15 and 985,107.20 is: 1,477,660.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,012.10 : 1,486,518.15 = 985,107.20 : x
  2. Step 2: Convert to fraction form
    991,012.10/1,486,518.15 = 985,107.20/x
  3. Step 3: Cross multiply
    991,012.10x = 1,486,518.15 × 985,107.20
  4. Step 4: Simplify right side
    991,012.10x = 1,464,379,732,495.68
  5. Step 5: Solve for x
    x = 1,464,379,732,495.68/991,012.10
  6. Step 6: Final answer
    x = 1,477,660.80

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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.