Home / 2,991,207.40-4,486,811.10-861,506.80

Finding the Fourth Proportional to 2,991,207.40, 4,486,811.10 and 861,506.80

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Solution

The fourth proportional to 2,991,207.40, 4,486,811.10 and 861,506.80 is: 1,292,260.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991,207.40 : 4,486,811.10 = 861,506.80 : x
  2. Step 2: Convert to fraction form
    2,991,207.40/4,486,811.10 = 861,506.80/x
  3. Step 3: Cross multiply
    2,991,207.40x = 4,486,811.10 × 861,506.80
  4. Step 4: Simplify right side
    2,991,207.40x = 3,865,418,272,965.48
  5. Step 5: Solve for x
    x = 3,865,418,272,965.48/2,991,207.40
  6. Step 6: Final answer
    x = 1,292,260.20

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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.