Home / 1,378,507.61-2,067,488.04-1,310,151.71

Finding the Fourth Proportional to 1,378,507.61, 2,067,488.04 and 1,310,151.71

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Solution

The fourth proportional to 1,378,507.61, 2,067,488.04 and 1,310,151.71 is: 1,964,967.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,507.61 : 2,067,488.04 = 1,310,151.71 : x
  2. Step 2: Convert to fraction form
    1,378,507.61/2,067,488.04 = 1,310,151.71/x
  3. Step 3: Cross multiply
    1,378,507.61x = 2,067,488.04 × 1,310,151.71
  4. Step 4: Simplify right side
    1,378,507.61x = 2,708,723,001,092.34
  5. Step 5: Solve for x
    x = 2,708,723,001,092.34/1,378,507.61
  6. Step 6: Final answer
    x = 1,964,967.75

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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.