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Finding the Fourth Proportional to 448,614.29, 618,737.68 and 287,484.33

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Solution

The fourth proportional to 448,614.29, 618,737.68 and 287,484.33 is: 396,504.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,614.29 : 618,737.68 = 287,484.33 : x
  2. Step 2: Convert to fraction form
    448,614.29/618,737.68 = 287,484.33/x
  3. Step 3: Cross multiply
    448,614.29x = 618,737.68 × 287,484.33
  4. Step 4: Simplify right side
    448,614.29x = 177,877,386,579.78
  5. Step 5: Solve for x
    x = 177,877,386,579.78/448,614.29
  6. Step 6: Final answer
    x = 396,504.06

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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.