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Finding the Fourth Proportional to 1,332,868.80, 1,839,407.76 and 759,902.88

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Solution

The fourth proportional to 1,332,868.80, 1,839,407.76 and 759,902.88 is: 1,048,693.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,332,868.80 : 1,839,407.76 = 759,902.88 : x
  2. Step 2: Convert to fraction form
    1,332,868.80/1,839,407.76 = 759,902.88/x
  3. Step 3: Cross multiply
    1,332,868.80x = 1,839,407.76 × 759,902.88
  4. Step 4: Simplify right side
    1,332,868.80x = 1,397,771,254,318.35
  5. Step 5: Solve for x
    x = 1,397,771,254,318.35/1,332,868.80
  6. Step 6: Final answer
    x = 1,048,693.81

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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.