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Finding the Fourth Proportional to 839,759.78, 1,158,751.64 and 495,610.08

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Solution

The fourth proportional to 839,759.78, 1,158,751.64 and 495,610.08 is: 683,872.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,759.78 : 1,158,751.64 = 495,610.08 : x
  2. Step 2: Convert to fraction form
    839,759.78/1,158,751.64 = 495,610.08/x
  3. Step 3: Cross multiply
    839,759.78x = 1,158,751.64 × 495,610.08
  4. Step 4: Simplify right side
    839,759.78x = 574,288,993,000.53
  5. Step 5: Solve for x
    x = 574,288,993,000.53/839,759.78
  6. Step 6: Final answer
    x = 683,872.94

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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.