Home / 1,678,121.51-2,519,377.47-996,253.16

Finding the Fourth Proportional to 1,678,121.51, 2,519,377.47 and 996,253.16

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Solution

The fourth proportional to 1,678,121.51, 2,519,377.47 and 996,253.16 is: 1,495,682.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,121.51 : 2,519,377.47 = 996,253.16 : x
  2. Step 2: Convert to fraction form
    1,678,121.51/2,519,377.47 = 996,253.16/x
  3. Step 3: Cross multiply
    1,678,121.51x = 2,519,377.47 × 996,253.16
  4. Step 4: Simplify right side
    1,678,121.51x = 2,509,937,753,123.42
  5. Step 5: Solve for x
    x = 2,509,937,753,123.42/1,678,121.51
  6. Step 6: Final answer
    x = 1,495,682.97

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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.