Home / 1,613,278.26-2,421,412.77-815,120.76

Finding the Fourth Proportional to 1,613,278.26, 2,421,412.77 and 815,120.76

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Solution

The fourth proportional to 1,613,278.26, 2,421,412.77 and 815,120.76 is: 1,223,436.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,278.26 : 2,421,412.77 = 815,120.76 : x
  2. Step 2: Convert to fraction form
    1,613,278.26/2,421,412.77 = 815,120.76/x
  3. Step 3: Cross multiply
    1,613,278.26x = 2,421,412.77 × 815,120.76
  4. Step 4: Simplify right side
    1,613,278.26x = 1,973,743,817,356.11
  5. Step 5: Solve for x
    x = 1,973,743,817,356.11/1,613,278.26
  6. Step 6: Final answer
    x = 1,223,436.69

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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.