Home / 857,534.08-1,286,312-324,912.04

Finding the Fourth Proportional to 857,534.08, 1,286,312 and 324,912.04

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Solution

The fourth proportional to 857,534.08, 1,286,312 and 324,912.04 is: 487,372.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,534.08 : 1,286,312 = 324,912.04 : x
  2. Step 2: Convert to fraction form
    857,534.08/1,286,312 = 324,912.04/x
  3. Step 3: Cross multiply
    857,534.08x = 1,286,312 × 324,912.04
  4. Step 4: Simplify right side
    857,534.08x = 417,938,255,996.48
  5. Step 5: Solve for x
    x = 417,938,255,996.48/857,534.08
  6. Step 6: Final answer
    x = 487,372.18

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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.