Home / 1,521,897.26-2,099,206.94-978,719.76

Finding the Fourth Proportional to 1,521,897.26, 2,099,206.94 and 978,719.76

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Solution

The fourth proportional to 1,521,897.26, 2,099,206.94 and 978,719.76 is: 1,349,982.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,897.26 : 2,099,206.94 = 978,719.76 : x
  2. Step 2: Convert to fraction form
    1,521,897.26/2,099,206.94 = 978,719.76/x
  3. Step 3: Cross multiply
    1,521,897.26x = 2,099,206.94 × 978,719.76
  4. Step 4: Simplify right side
    1,521,897.26x = 2,054,535,307,613.54
  5. Step 5: Solve for x
    x = 2,054,535,307,613.54/1,521,897.26
  6. Step 6: Final answer
    x = 1,349,982.92

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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.