Home / 578,599.20-868,082.40-279,106.56

Finding the Fourth Proportional to 578,599.20, 868,082.40 and 279,106.56

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Solution

The fourth proportional to 578,599.20, 868,082.40 and 279,106.56 is: 418,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,599.20 : 868,082.40 = 279,106.56 : x
  2. Step 2: Convert to fraction form
    578,599.20/868,082.40 = 279,106.56/x
  3. Step 3: Cross multiply
    578,599.20x = 868,082.40 × 279,106.56
  4. Step 4: Simplify right side
    578,599.20x = 242,287,492,460.54
  5. Step 5: Solve for x
    x = 242,287,492,460.54/578,599.20
  6. Step 6: Final answer
    x = 418,748.41

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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.