Home / 993,020.80-1,489,531.20-519,851.20

Finding the Fourth Proportional to 993,020.80, 1,489,531.20 and 519,851.20

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Solution

The fourth proportional to 993,020.80, 1,489,531.20 and 519,851.20 is: 779,776.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,020.80 : 1,489,531.20 = 519,851.20 : x
  2. Step 2: Convert to fraction form
    993,020.80/1,489,531.20 = 519,851.20/x
  3. Step 3: Cross multiply
    993,020.80x = 1,489,531.20 × 519,851.20
  4. Step 4: Simplify right side
    993,020.80x = 774,334,581,757.44
  5. Step 5: Solve for x
    x = 774,334,581,757.44/993,020.80
  6. Step 6: Final answer
    x = 779,776.80

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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.