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Finding the Fourth Proportional to 3,181,687, 4,390,728.78 and 1,750,903

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Solution

The fourth proportional to 3,181,687, 4,390,728.78 and 1,750,903 is: 2,416,246.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,181,687 : 4,390,728.78 = 1,750,903 : x
  2. Step 2: Convert to fraction form
    3,181,687/4,390,728.78 = 1,750,903/x
  3. Step 3: Cross multiply
    3,181,687x = 4,390,728.78 × 1,750,903
  4. Step 4: Simplify right side
    3,181,687x = 7,687,740,193,088.34
  5. Step 5: Solve for x
    x = 7,687,740,193,088.34/3,181,687
  6. Step 6: Final answer
    x = 2,416,246.54

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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.