Home / 1,981,477.62-2,971,279.62-767,622.78

Finding the Fourth Proportional to 1,981,477.62, 2,971,279.62 and 767,622.78

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Solution

The fourth proportional to 1,981,477.62, 2,971,279.62 and 767,622.78 is: 1,151,071.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,981,477.62 : 2,971,279.62 = 767,622.78 : x
  2. Step 2: Convert to fraction form
    1,981,477.62/2,971,279.62 = 767,622.78/x
  3. Step 3: Cross multiply
    1,981,477.62x = 2,971,279.62 × 767,622.78
  4. Step 4: Simplify right side
    1,981,477.62x = 2,280,821,922,061.74
  5. Step 5: Solve for x
    x = 2,280,821,922,061.74/1,981,477.62
  6. Step 6: Final answer
    x = 1,151,071.25

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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.