Home / 743,361.60-1,109,424.78-671,617.20

Finding the Fourth Proportional to 743,361.60, 1,109,424.78 and 671,617.20

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Solution

The fourth proportional to 743,361.60, 1,109,424.78 and 671,617.20 is: 1,002,350.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,361.60 : 1,109,424.78 = 671,617.20 : x
  2. Step 2: Convert to fraction form
    743,361.60/1,109,424.78 = 671,617.20/x
  3. Step 3: Cross multiply
    743,361.60x = 1,109,424.78 × 671,617.20
  4. Step 4: Simplify right side
    743,361.60x = 745,108,764,354.22
  5. Step 5: Solve for x
    x = 745,108,764,354.22/743,361.60
  6. Step 6: Final answer
    x = 1,002,350.36

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.