Home / 1,971,279.09-2,956,910.13-772,354.80

Finding the Fourth Proportional to 1,971,279.09, 2,956,910.13 and 772,354.80

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Solution

The fourth proportional to 1,971,279.09, 2,956,910.13 and 772,354.80 is: 1,158,528.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,971,279.09 : 2,956,910.13 = 772,354.80 : x
  2. Step 2: Convert to fraction form
    1,971,279.09/2,956,910.13 = 772,354.80/x
  3. Step 3: Cross multiply
    1,971,279.09x = 2,956,910.13 × 772,354.80
  4. Step 4: Simplify right side
    1,971,279.09x = 2,283,783,732,074.12
  5. Step 5: Solve for x
    x = 2,283,783,732,074.12/1,971,279.09
  6. Step 6: Final answer
    x = 1,158,528.87

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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.