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Finding the Fourth Proportional to 835,391.76, 1,152,866.37 and 491,165.25

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Solution

The fourth proportional to 835,391.76, 1,152,866.37 and 491,165.25 is: 677,823.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    835,391.76 : 1,152,866.37 = 491,165.25 : x
  2. Step 2: Convert to fraction form
    835,391.76/1,152,866.37 = 491,165.25/x
  3. Step 3: Cross multiply
    835,391.76x = 1,152,866.37 × 491,165.25
  4. Step 4: Simplify right side
    835,391.76x = 566,247,898,837.64
  5. Step 5: Solve for x
    x = 566,247,898,837.64/835,391.76
  6. Step 6: Final answer
    x = 677,823.18

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Double scale
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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.