Home / 1,221,778.62-1,680,075.61-1,060,353.42

Finding the Fourth Proportional to 1,221,778.62, 1,680,075.61 and 1,060,353.42

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Solution

The fourth proportional to 1,221,778.62, 1,680,075.61 and 1,060,353.42 is: 1,458,098.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,778.62 : 1,680,075.61 = 1,060,353.42 : x
  2. Step 2: Convert to fraction form
    1,221,778.62/1,680,075.61 = 1,060,353.42/x
  3. Step 3: Cross multiply
    1,221,778.62x = 1,680,075.61 × 1,060,353.42
  4. Step 4: Simplify right side
    1,221,778.62x = 1,781,473,909,970.92
  5. Step 5: Solve for x
    x = 1,781,473,909,970.92/1,221,778.62
  6. Step 6: Final answer
    x = 1,458,098.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.