Home / 1,078,747.61-1,618,443.38-320,614.34

Finding the Fourth Proportional to 1,078,747.61, 1,618,443.38 and 320,614.34

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Solution

The fourth proportional to 1,078,747.61, 1,618,443.38 and 320,614.34 is: 481,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,747.61 : 1,618,443.38 = 320,614.34 : x
  2. Step 2: Convert to fraction form
    1,078,747.61/1,618,443.38 = 320,614.34/x
  3. Step 3: Cross multiply
    1,078,747.61x = 1,618,443.38 × 320,614.34
  4. Step 4: Simplify right side
    1,078,747.61x = 518,896,148,815.39
  5. Step 5: Solve for x
    x = 518,896,148,815.39/1,078,747.61
  6. Step 6: Final answer
    x = 481,017.20

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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.