Home / 1,391,500.60-1,921,191.96-1,068,631.36

Finding the Fourth Proportional to 1,391,500.60, 1,921,191.96 and 1,068,631.36

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Solution

The fourth proportional to 1,391,500.60, 1,921,191.96 and 1,068,631.36 is: 1,475,418.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,500.60 : 1,921,191.96 = 1,068,631.36 : x
  2. Step 2: Convert to fraction form
    1,391,500.60/1,921,191.96 = 1,068,631.36/x
  3. Step 3: Cross multiply
    1,391,500.60x = 1,921,191.96 × 1,068,631.36
  4. Step 4: Simplify right side
    1,391,500.60x = 2,053,045,977,035.87
  5. Step 5: Solve for x
    x = 2,053,045,977,035.87/1,391,500.60
  6. Step 6: Final answer
    x = 1,475,418.68

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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.