Home / 481,006.47-663,683.59-287,385.13

Finding the Fourth Proportional to 481,006.47, 663,683.59 and 287,385.13

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Solution

The fourth proportional to 481,006.47, 663,683.59 and 287,385.13 is: 396,528.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,006.47 : 663,683.59 = 287,385.13 : x
  2. Step 2: Convert to fraction form
    481,006.47/663,683.59 = 287,385.13/x
  3. Step 3: Cross multiply
    481,006.47x = 663,683.59 × 287,385.13
  4. Step 4: Simplify right side
    481,006.47x = 190,732,793,786.14
  5. Step 5: Solve for x
    x = 190,732,793,786.14/481,006.47
  6. Step 6: Final answer
    x = 396,528.54

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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.