Home / 578,483.28-868,284.64-279,174.56

Finding the Fourth Proportional to 578,483.28, 868,284.64 and 279,174.56

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Solution

The fourth proportional to 578,483.28, 868,284.64 and 279,174.56 is: 419,031.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,483.28 : 868,284.64 = 279,174.56 : x
  2. Step 2: Convert to fraction form
    578,483.28/868,284.64 = 279,174.56/x
  3. Step 3: Cross multiply
    578,483.28x = 868,284.64 × 279,174.56
  4. Step 4: Simplify right side
    578,483.28x = 242,402,982,326.76
  5. Step 5: Solve for x
    x = 242,402,982,326.76/578,483.28
  6. Step 6: Final answer
    x = 419,031.96

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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.