Home / 1,028,530.88-1,543,202.52-318,614.30

Finding the Fourth Proportional to 1,028,530.88, 1,543,202.52 and 318,614.30

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Solution

The fourth proportional to 1,028,530.88, 1,543,202.52 and 318,614.30 is: 478,047.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,028,530.88 : 1,543,202.52 = 318,614.30 : x
  2. Step 2: Convert to fraction form
    1,028,530.88/1,543,202.52 = 318,614.30/x
  3. Step 3: Cross multiply
    1,028,530.88x = 1,543,202.52 × 318,614.30
  4. Step 4: Simplify right side
    1,028,530.88x = 491,686,390,668.04
  5. Step 5: Solve for x
    x = 491,686,390,668.04/1,028,530.88
  6. Step 6: Final answer
    x = 478,047.28

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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.