Home / 1,531,174.43-2,298,357.71-678,844.63

Finding the Fourth Proportional to 1,531,174.43, 2,298,357.71 and 678,844.63

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Solution

The fourth proportional to 1,531,174.43, 2,298,357.71 and 678,844.63 is: 1,018,974.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,531,174.43 : 2,298,357.71 = 678,844.63 : x
  2. Step 2: Convert to fraction form
    1,531,174.43/2,298,357.71 = 678,844.63/x
  3. Step 3: Cross multiply
    1,531,174.43x = 2,298,357.71 × 678,844.63
  4. Step 4: Simplify right side
    1,531,174.43x = 1,560,227,791,276.99
  5. Step 5: Solve for x
    x = 1,560,227,791,276.99/1,531,174.43
  6. Step 6: Final answer
    x = 1,018,974.56

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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.