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Finding the Fourth Proportional to 887,879.12, 1,225,393.11 and 500,773.95

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Solution

The fourth proportional to 887,879.12, 1,225,393.11 and 500,773.95 is: 691,135.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,879.12 : 1,225,393.11 = 500,773.95 : x
  2. Step 2: Convert to fraction form
    887,879.12/1,225,393.11 = 500,773.95/x
  3. Step 3: Cross multiply
    887,879.12x = 1,225,393.11 × 500,773.95
  4. Step 4: Simplify right side
    887,879.12x = 613,644,947,997.49
  5. Step 5: Solve for x
    x = 613,644,947,997.49/887,879.12
  6. Step 6: Final answer
    x = 691,135.69

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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.