Home / 781,883.52-1,079,115.30-495,430.44

Finding the Fourth Proportional to 781,883.52, 1,079,115.30 and 495,430.44

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Solution

The fourth proportional to 781,883.52, 1,079,115.30 and 495,430.44 is: 683,767.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,883.52 : 1,079,115.30 = 495,430.44 : x
  2. Step 2: Convert to fraction form
    781,883.52/1,079,115.30 = 495,430.44/x
  3. Step 3: Cross multiply
    781,883.52x = 1,079,115.30 × 495,430.44
  4. Step 4: Simplify right side
    781,883.52x = 534,626,567,889.73
  5. Step 5: Solve for x
    x = 534,626,567,889.73/781,883.52
  6. Step 6: Final answer
    x = 683,767.54

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Double scale
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1.5x scale

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.