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Finding the Fourth Proportional to 544,535.20, 816,802.80 and 520,040.80

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Solution

The fourth proportional to 544,535.20, 816,802.80 and 520,040.80 is: 780,061.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    544,535.20 : 816,802.80 = 520,040.80 : x
  2. Step 2: Convert to fraction form
    544,535.20/816,802.80 = 520,040.80/x
  3. Step 3: Cross multiply
    544,535.20x = 816,802.80 × 520,040.80
  4. Step 4: Simplify right side
    544,535.20x = 424,770,781,554.24
  5. Step 5: Solve for x
    x = 424,770,781,554.24/544,535.20
  6. Step 6: Final answer
    x = 780,061.20

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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.