Home / 1,098,464.70-1,646,494.20-388,127.10

Finding the Fourth Proportional to 1,098,464.70, 1,646,494.20 and 388,127.10

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Solution

The fourth proportional to 1,098,464.70, 1,646,494.20 and 388,127.10 is: 581,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,098,464.70 : 1,646,494.20 = 388,127.10 : x
  2. Step 2: Convert to fraction form
    1,098,464.70/1,646,494.20 = 388,127.10/x
  3. Step 3: Cross multiply
    1,098,464.70x = 1,646,494.20 × 388,127.10
  4. Step 4: Simplify right side
    1,098,464.70x = 639,049,019,012.82
  5. Step 5: Solve for x
    x = 639,049,019,012.82/1,098,464.70
  6. Step 6: Final answer
    x = 581,765.64

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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.