Home / 756,144.45-1,134,417.15-329,497.20

Finding the Fourth Proportional to 756,144.45, 1,134,417.15 and 329,497.20

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Solution

The fourth proportional to 756,144.45, 1,134,417.15 and 329,497.20 is: 494,333.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,144.45 : 1,134,417.15 = 329,497.20 : x
  2. Step 2: Convert to fraction form
    756,144.45/1,134,417.15 = 329,497.20/x
  3. Step 3: Cross multiply
    756,144.45x = 1,134,417.15 × 329,497.20
  4. Step 4: Simplify right side
    756,144.45x = 373,787,274,556.98
  5. Step 5: Solve for x
    x = 373,787,274,556.98/756,144.45
  6. Step 6: Final answer
    x = 494,333.16

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Double scale
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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.