Home / 1,120,003.21-1,680,010.89-278,554.96

Finding the Fourth Proportional to 1,120,003.21, 1,680,010.89 and 278,554.96

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Solution

The fourth proportional to 1,120,003.21, 1,680,010.89 and 278,554.96 is: 417,833.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,003.21 : 1,680,010.89 = 278,554.96 : x
  2. Step 2: Convert to fraction form
    1,120,003.21/1,680,010.89 = 278,554.96/x
  3. Step 3: Cross multiply
    1,120,003.21x = 1,680,010.89 × 278,554.96
  4. Step 4: Simplify right side
    1,120,003.21x = 467,975,366,263.51
  5. Step 5: Solve for x
    x = 467,975,366,263.51/1,120,003.21
  6. Step 6: Final answer
    x = 417,833.95

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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.