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Finding the Fourth Proportional to 605,020.80, 907,531.20 and 575,496.30

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Solution

The fourth proportional to 605,020.80, 907,531.20 and 575,496.30 is: 863,244.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,020.80 : 907,531.20 = 575,496.30 : x
  2. Step 2: Convert to fraction form
    605,020.80/907,531.20 = 575,496.30/x
  3. Step 3: Cross multiply
    605,020.80x = 907,531.20 × 575,496.30
  4. Step 4: Simplify right side
    605,020.80x = 522,280,847,734.56
  5. Step 5: Solve for x
    x = 522,280,847,734.56/605,020.80
  6. Step 6: Final answer
    x = 863,244.45

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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.