Home / 753,725.79-1,129,952.82-326,940.30

Finding the Fourth Proportional to 753,725.79, 1,129,952.82 and 326,940.30

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Solution

The fourth proportional to 753,725.79, 1,129,952.82 and 326,940.30 is: 490,134.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,725.79 : 1,129,952.82 = 326,940.30 : x
  2. Step 2: Convert to fraction form
    753,725.79/1,129,952.82 = 326,940.30/x
  3. Step 3: Cross multiply
    753,725.79x = 1,129,952.82 × 326,940.30
  4. Step 4: Simplify right side
    753,725.79x = 369,427,113,956.65
  5. Step 5: Solve for x
    x = 369,427,113,956.65/753,725.79
  6. Step 6: Final answer
    x = 490,134.63

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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.