Home / 1,206,651.84-1,665,133.92-670,142.40

Finding the Fourth Proportional to 1,206,651.84, 1,665,133.92 and 670,142.40

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Solution

The fourth proportional to 1,206,651.84, 1,665,133.92 and 670,142.40 is: 924,771.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,651.84 : 1,665,133.92 = 670,142.40 : x
  2. Step 2: Convert to fraction form
    1,206,651.84/1,665,133.92 = 670,142.40/x
  3. Step 3: Cross multiply
    1,206,651.84x = 1,665,133.92 × 670,142.40
  4. Step 4: Simplify right side
    1,206,651.84x = 1,115,876,841,470.21
  5. Step 5: Solve for x
    x = 1,115,876,841,470.21/1,206,651.84
  6. Step 6: Final answer
    x = 924,771.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.