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Finding the Fourth Proportional to 1,988,765.52, 2,980,478.52 and 1,088,849.04

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Solution

The fourth proportional to 1,988,765.52, 2,980,478.52 and 1,088,849.04 is: 1,631,811.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,765.52 : 2,980,478.52 = 1,088,849.04 : x
  2. Step 2: Convert to fraction form
    1,988,765.52/2,980,478.52 = 1,088,849.04/x
  3. Step 3: Cross multiply
    1,988,765.52x = 2,980,478.52 × 1,088,849.04
  4. Step 4: Simplify right side
    1,988,765.52x = 3,245,291,175,242.62
  5. Step 5: Solve for x
    x = 3,245,291,175,242.62/1,988,765.52
  6. Step 6: Final answer
    x = 1,631,811.87

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.