Home / 1,120,040.46-1,680,066.77-278,592.21

Finding the Fourth Proportional to 1,120,040.46, 1,680,066.77 and 278,592.21

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Solution

The fourth proportional to 1,120,040.46, 1,680,066.77 and 278,592.21 is: 417,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,040.46 : 1,680,066.77 = 278,592.21 : x
  2. Step 2: Convert to fraction form
    1,120,040.46/1,680,066.77 = 278,592.21/x
  3. Step 3: Cross multiply
    1,120,040.46x = 1,680,066.77 × 278,592.21
  4. Step 4: Simplify right side
    1,120,040.46x = 468,053,513,008.90
  5. Step 5: Solve for x
    x = 468,053,513,008.90/1,120,040.46
  6. Step 6: Final answer
    x = 417,889.83

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1.5x scale

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.