Home / 2,661,127.20-3,991,690.80-767,930.40

Finding the Fourth Proportional to 2,661,127.20, 3,991,690.80 and 767,930.40

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Solution

The fourth proportional to 2,661,127.20, 3,991,690.80 and 767,930.40 is: 1,151,895.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,661,127.20 : 3,991,690.80 = 767,930.40 : x
  2. Step 2: Convert to fraction form
    2,661,127.20/3,991,690.80 = 767,930.40/x
  3. Step 3: Cross multiply
    2,661,127.20x = 3,991,690.80 × 767,930.40
  4. Step 4: Simplify right side
    2,661,127.20x = 3,065,340,712,720.32
  5. Step 5: Solve for x
    x = 3,065,340,712,720.32/2,661,127.20
  6. Step 6: Final answer
    x = 1,151,895.60

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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.