Home / 1,113,990.46-1,668,107.89-768,838.97

Finding the Fourth Proportional to 1,113,990.46, 1,668,107.89 and 768,838.97

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Solution

The fourth proportional to 1,113,990.46, 1,668,107.89 and 768,838.97 is: 1,151,272.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,113,990.46 : 1,668,107.89 = 768,838.97 : x
  2. Step 2: Convert to fraction form
    1,113,990.46/1,668,107.89 = 768,838.97/x
  3. Step 3: Cross multiply
    1,113,990.46x = 1,668,107.89 × 768,838.97
  4. Step 4: Simplify right side
    1,113,990.46x = 1,282,506,351,996.47
  5. Step 5: Solve for x
    x = 1,282,506,351,996.47/1,113,990.46
  6. Step 6: Final answer
    x = 1,151,272.29

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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.