Home / 1,915,814.96-2,643,729.80-1,088,780.88

Finding the Fourth Proportional to 1,915,814.96, 2,643,729.80 and 1,088,780.88

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Solution

The fourth proportional to 1,915,814.96, 2,643,729.80 and 1,088,780.88 is: 1,502,463.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,814.96 : 2,643,729.80 = 1,088,780.88 : x
  2. Step 2: Convert to fraction form
    1,915,814.96/2,643,729.80 = 1,088,780.88/x
  3. Step 3: Cross multiply
    1,915,814.96x = 2,643,729.80 × 1,088,780.88
  4. Step 4: Simplify right side
    1,915,814.96x = 2,878,442,458,126.22
  5. Step 5: Solve for x
    x = 2,878,442,458,126.22/1,915,814.96
  6. Step 6: Final answer
    x = 1,502,463.71

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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.