Home / 1,678,447.28-2,517,668.62-779,397.40

Finding the Fourth Proportional to 1,678,447.28, 2,517,668.62 and 779,397.40

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Solution

The fourth proportional to 1,678,447.28, 2,517,668.62 and 779,397.40 is: 1,169,095.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,447.28 : 2,517,668.62 = 779,397.40 : x
  2. Step 2: Convert to fraction form
    1,678,447.28/2,517,668.62 = 779,397.40/x
  3. Step 3: Cross multiply
    1,678,447.28x = 2,517,668.62 × 779,397.40
  4. Step 4: Simplify right side
    1,678,447.28x = 1,962,264,376,489.59
  5. Step 5: Solve for x
    x = 1,962,264,376,489.59/1,678,447.28
  6. Step 6: Final answer
    x = 1,169,095.03

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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.