Home / 852,722.10-1,278,860.40-253,521.90

Finding the Fourth Proportional to 852,722.10, 1,278,860.40 and 253,521.90

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Solution

The fourth proportional to 852,722.10, 1,278,860.40 and 253,521.90 is: 380,216.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,722.10 : 1,278,860.40 = 253,521.90 : x
  2. Step 2: Convert to fraction form
    852,722.10/1,278,860.40 = 253,521.90/x
  3. Step 3: Cross multiply
    852,722.10x = 1,278,860.40 × 253,521.90
  4. Step 4: Simplify right side
    852,722.10x = 324,219,118,442.76
  5. Step 5: Solve for x
    x = 324,219,118,442.76/852,722.10
  6. Step 6: Final answer
    x = 380,216.62

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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.