Home / 1,678,246.68-2,316,261.22-990,089.30

Finding the Fourth Proportional to 1,678,246.68, 2,316,261.22 and 990,089.30

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Solution

The fourth proportional to 1,678,246.68, 2,316,261.22 and 990,089.30 is: 1,366,488.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,246.68 : 2,316,261.22 = 990,089.30 : x
  2. Step 2: Convert to fraction form
    1,678,246.68/2,316,261.22 = 990,089.30/x
  3. Step 3: Cross multiply
    1,678,246.68x = 2,316,261.22 × 990,089.30
  4. Step 4: Simplify right side
    1,678,246.68x = 2,293,305,449,926.95
  5. Step 5: Solve for x
    x = 2,293,305,449,926.95/1,678,246.68
  6. Step 6: Final answer
    x = 1,366,488.89

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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.