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Finding the Fourth Proportional to 1,672,582.23, 2,307,978.36 and 927,489.42

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Solution

The fourth proportional to 1,672,582.23, 2,307,978.36 and 927,489.42 is: 1,279,832.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,672,582.23 : 2,307,978.36 = 927,489.42 : x
  2. Step 2: Convert to fraction form
    1,672,582.23/2,307,978.36 = 927,489.42/x
  3. Step 3: Cross multiply
    1,672,582.23x = 2,307,978.36 × 927,489.42
  4. Step 4: Simplify right side
    1,672,582.23x = 2,140,625,510,488.95
  5. Step 5: Solve for x
    x = 2,140,625,510,488.95/1,672,582.23
  6. Step 6: Final answer
    x = 1,279,832.75

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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.