Home / 1,109,439.81-1,663,517.88-434,731.19

Finding the Fourth Proportional to 1,109,439.81, 1,663,517.88 and 434,731.19

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Solution

The fourth proportional to 1,109,439.81, 1,663,517.88 and 434,731.19 is: 651,845.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,439.81 : 1,663,517.88 = 434,731.19 : x
  2. Step 2: Convert to fraction form
    1,109,439.81/1,663,517.88 = 434,731.19/x
  3. Step 3: Cross multiply
    1,109,439.81x = 1,663,517.88 × 434,731.19
  4. Step 4: Simplify right side
    1,109,439.81x = 723,183,099,241.09
  5. Step 5: Solve for x
    x = 723,183,099,241.09/1,109,439.81
  6. Step 6: Final answer
    x = 651,845.28

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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.