Home / 823,729.28-1,235,628.42-291,254.72

Finding the Fourth Proportional to 823,729.28, 1,235,628.42 and 291,254.72

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Solution

The fourth proportional to 823,729.28, 1,235,628.42 and 291,254.72 is: 436,894.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,729.28 : 1,235,628.42 = 291,254.72 : x
  2. Step 2: Convert to fraction form
    823,729.28/1,235,628.42 = 291,254.72/x
  3. Step 3: Cross multiply
    823,729.28x = 1,235,628.42 × 291,254.72
  4. Step 4: Simplify right side
    823,729.28x = 359,882,609,491.14
  5. Step 5: Solve for x
    x = 359,882,609,491.14/823,729.28
  6. Step 6: Final answer
    x = 436,894.28

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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.