Home / 928,530.78-1,392,920.16-367,434.06

Finding the Fourth Proportional to 928,530.78, 1,392,920.16 and 367,434.06

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Solution

The fourth proportional to 928,530.78, 1,392,920.16 and 367,434.06 is: 551,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    928,530.78 : 1,392,920.16 = 367,434.06 : x
  2. Step 2: Convert to fraction form
    928,530.78/1,392,920.16 = 367,434.06/x
  3. Step 3: Cross multiply
    928,530.78x = 1,392,920.16 × 367,434.06
  4. Step 4: Simplify right side
    928,530.78x = 511,806,309,644.65
  5. Step 5: Solve for x
    x = 511,806,309,644.65/928,530.78
  6. Step 6: Final answer
    x = 551,200.15

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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.