Home / 1,107,520.80-1,661,281.20-910,690.80

Finding the Fourth Proportional to 1,107,520.80, 1,661,281.20 and 910,690.80

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Solution

The fourth proportional to 1,107,520.80, 1,661,281.20 and 910,690.80 is: 1,366,036.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,520.80 : 1,661,281.20 = 910,690.80 : x
  2. Step 2: Convert to fraction form
    1,107,520.80/1,661,281.20 = 910,690.80/x
  3. Step 3: Cross multiply
    1,107,520.80x = 1,661,281.20 × 910,690.80
  4. Step 4: Simplify right side
    1,107,520.80x = 1,512,913,505,052.96
  5. Step 5: Solve for x
    x = 1,512,913,505,052.96/1,107,520.80
  6. Step 6: Final answer
    x = 1,366,036.20

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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.