Home / 1,613,279.51-2,421,414.65-815,122.03

Finding the Fourth Proportional to 1,613,279.51, 2,421,414.65 and 815,122.03

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Solution

The fourth proportional to 1,613,279.51, 2,421,414.65 and 815,122.03 is: 1,223,438.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,613,279.51 : 2,421,414.65 = 815,122.03 : x
  2. Step 2: Convert to fraction form
    1,613,279.51/2,421,414.65 = 815,122.03/x
  3. Step 3: Cross multiply
    1,613,279.51x = 2,421,414.65 × 815,122.03
  4. Step 4: Simplify right side
    1,613,279.51x = 1,973,748,424,979.74
  5. Step 5: Solve for x
    x = 1,973,748,424,979.74/1,613,279.51
  6. Step 6: Final answer
    x = 1,223,438.60

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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.