Home / 1,078,933.40-1,618,400.10-743,010.20

Finding the Fourth Proportional to 1,078,933.40, 1,618,400.10 and 743,010.20

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Solution

The fourth proportional to 1,078,933.40, 1,618,400.10 and 743,010.20 is: 1,114,515.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,933.40 : 1,618,400.10 = 743,010.20 : x
  2. Step 2: Convert to fraction form
    1,078,933.40/1,618,400.10 = 743,010.20/x
  3. Step 3: Cross multiply
    1,078,933.40x = 1,618,400.10 × 743,010.20
  4. Step 4: Simplify right side
    1,078,933.40x = 1,202,487,781,981.02
  5. Step 5: Solve for x
    x = 1,202,487,781,981.02/1,078,933.40
  6. Step 6: Final answer
    x = 1,114,515.30

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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.