Home / 1,120,003.46-1,680,011.27-278,555.21

Finding the Fourth Proportional to 1,120,003.46, 1,680,011.27 and 278,555.21

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Solution

The fourth proportional to 1,120,003.46, 1,680,011.27 and 278,555.21 is: 417,834.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,003.46 : 1,680,011.27 = 278,555.21 : x
  2. Step 2: Convert to fraction form
    1,120,003.46/1,680,011.27 = 278,555.21/x
  3. Step 3: Cross multiply
    1,120,003.46x = 1,680,011.27 × 278,555.21
  4. Step 4: Simplify right side
    1,120,003.46x = 467,975,890,724.44
  5. Step 5: Solve for x
    x = 467,975,890,724.44/1,120,003.46
  6. Step 6: Final answer
    x = 417,834.33

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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.