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Finding the Fourth Proportional to 893,670.60, 1,340,505.90 and 887,449.80

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Solution

The fourth proportional to 893,670.60, 1,340,505.90 and 887,449.80 is: 1,331,174.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,670.60 : 1,340,505.90 = 887,449.80 : x
  2. Step 2: Convert to fraction form
    893,670.60/1,340,505.90 = 887,449.80/x
  3. Step 3: Cross multiply
    893,670.60x = 1,340,505.90 × 887,449.80
  4. Step 4: Simplify right side
    893,670.60x = 1,189,631,692,853.82
  5. Step 5: Solve for x
    x = 1,189,631,692,853.82/893,670.60
  6. Step 6: Final answer
    x = 1,331,174.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.