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Finding the Fourth Proportional to 554,939.80, 832,409.70 and 495,842.20

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Solution

The fourth proportional to 554,939.80, 832,409.70 and 495,842.20 is: 743,763.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,939.80 : 832,409.70 = 495,842.20 : x
  2. Step 2: Convert to fraction form
    554,939.80/832,409.70 = 495,842.20/x
  3. Step 3: Cross multiply
    554,939.80x = 832,409.70 × 495,842.20
  4. Step 4: Simplify right side
    554,939.80x = 412,743,856,949.34
  5. Step 5: Solve for x
    x = 412,743,856,949.34/554,939.80
  6. Step 6: Final answer
    x = 743,763.30

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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.