Home / 1,129,778.08-1,694,290.80-455,685.28

Finding the Fourth Proportional to 1,129,778.08, 1,694,290.80 and 455,685.28

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Solution

The fourth proportional to 1,129,778.08, 1,694,290.80 and 455,685.28 is: 683,376.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,778.08 : 1,694,290.80 = 455,685.28 : x
  2. Step 2: Convert to fraction form
    1,129,778.08/1,694,290.80 = 455,685.28/x
  3. Step 3: Cross multiply
    1,129,778.08x = 1,694,290.80 × 455,685.28
  4. Step 4: Simplify right side
    1,129,778.08x = 772,063,377,599.42
  5. Step 5: Solve for x
    x = 772,063,377,599.42/1,129,778.08
  6. Step 6: Final answer
    x = 683,376.13

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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.