Home / 753,212.31-1,129,402.57-392,482.54

Finding the Fourth Proportional to 753,212.31, 1,129,402.57 and 392,482.54

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Solution

The fourth proportional to 753,212.31, 1,129,402.57 and 392,482.54 is: 588,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,212.31 : 1,129,402.57 = 392,482.54 : x
  2. Step 2: Convert to fraction form
    753,212.31/1,129,402.57 = 392,482.54/x
  3. Step 3: Cross multiply
    753,212.31x = 1,129,402.57 × 392,482.54
  4. Step 4: Simplify right side
    753,212.31x = 443,270,787,393.72
  5. Step 5: Solve for x
    x = 443,270,787,393.72/753,212.31
  6. Step 6: Final answer
    x = 588,507.10

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1.5x scale

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.