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Finding the Fourth Proportional to 436,927.80, 655,391.70 and 296,959.80

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Solution

The fourth proportional to 436,927.80, 655,391.70 and 296,959.80 is: 445,439.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,927.80 : 655,391.70 = 296,959.80 : x
  2. Step 2: Convert to fraction form
    436,927.80/655,391.70 = 296,959.80/x
  3. Step 3: Cross multiply
    436,927.80x = 655,391.70 × 296,959.80
  4. Step 4: Simplify right side
    436,927.80x = 194,624,988,153.66
  5. Step 5: Solve for x
    x = 194,624,988,153.66/436,927.80
  6. Step 6: Final answer
    x = 445,439.70

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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.