Home / 912,076.80-1,368,115.20-807,100.80

Finding the Fourth Proportional to 912,076.80, 1,368,115.20 and 807,100.80

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Solution

The fourth proportional to 912,076.80, 1,368,115.20 and 807,100.80 is: 1,210,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,076.80 : 1,368,115.20 = 807,100.80 : x
  2. Step 2: Convert to fraction form
    912,076.80/1,368,115.20 = 807,100.80/x
  3. Step 3: Cross multiply
    912,076.80x = 1,368,115.20 × 807,100.80
  4. Step 4: Simplify right side
    912,076.80x = 1,104,206,872,412.16
  5. Step 5: Solve for x
    x = 1,104,206,872,412.16/912,076.80
  6. Step 6: Final answer
    x = 1,210,651.20

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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.