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Finding the Fourth Proportional to 605,039.80, 907,559.70 and 575,515.30

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Solution

The fourth proportional to 605,039.80, 907,559.70 and 575,515.30 is: 863,272.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,039.80 : 907,559.70 = 575,515.30 : x
  2. Step 2: Convert to fraction form
    605,039.80/907,559.70 = 575,515.30/x
  3. Step 3: Cross multiply
    605,039.80x = 907,559.70 × 575,515.30
  4. Step 4: Simplify right side
    605,039.80x = 522,314,493,013.41
  5. Step 5: Solve for x
    x = 522,314,493,013.41/605,039.80
  6. Step 6: Final answer
    x = 863,272.95

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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.