Home / 3,161,969.40-4,743,085.30-918,107.40

Finding the Fourth Proportional to 3,161,969.40, 4,743,085.30 and 918,107.40

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Solution

The fourth proportional to 3,161,969.40, 4,743,085.30 and 918,107.40 is: 1,377,199.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,161,969.40 : 4,743,085.30 = 918,107.40 : x
  2. Step 2: Convert to fraction form
    3,161,969.40/4,743,085.30 = 918,107.40/x
  3. Step 3: Cross multiply
    3,161,969.40x = 4,743,085.30 × 918,107.40
  4. Step 4: Simplify right side
    3,161,969.40x = 4,354,661,712,761.22
  5. Step 5: Solve for x
    x = 4,354,661,712,761.22/3,161,969.40
  6. Step 6: Final answer
    x = 1,377,199.20

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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.