Home / 540,965.40-746,467.20-311,597.29

Finding the Fourth Proportional to 540,965.40, 746,467.20 and 311,597.29

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Solution

The fourth proportional to 540,965.40, 746,467.20 and 311,597.29 is: 429,966.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,965.40 : 746,467.20 = 311,597.29 : x
  2. Step 2: Convert to fraction form
    540,965.40/746,467.20 = 311,597.29/x
  3. Step 3: Cross multiply
    540,965.40x = 746,467.20 × 311,597.29
  4. Step 4: Simplify right side
    540,965.40x = 232,597,156,593.89
  5. Step 5: Solve for x
    x = 232,597,156,593.89/540,965.40
  6. Step 6: Final answer
    x = 429,966.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.