Home / 465,477.30-642,429.09-284,295.06

Finding the Fourth Proportional to 465,477.30, 642,429.09 and 284,295.06

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Solution

The fourth proportional to 465,477.30, 642,429.09 and 284,295.06 is: 392,370.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,477.30 : 642,429.09 = 284,295.06 : x
  2. Step 2: Convert to fraction form
    465,477.30/642,429.09 = 284,295.06/x
  3. Step 3: Cross multiply
    465,477.30x = 642,429.09 × 284,295.06
  4. Step 4: Simplify right side
    465,477.30x = 182,639,416,687.30
  5. Step 5: Solve for x
    x = 182,639,416,687.30/465,477.30
  6. Step 6: Final answer
    x = 392,370.19

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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.