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Finding the Fourth Proportional to 424,396.88, 636,586.09 and 199,632.74

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Solution

The fourth proportional to 424,396.88, 636,586.09 and 199,632.74 is: 299,444.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,396.88 : 636,586.09 = 199,632.74 : x
  2. Step 2: Convert to fraction form
    424,396.88/636,586.09 = 199,632.74/x
  3. Step 3: Cross multiply
    424,396.88x = 636,586.09 × 199,632.74
  4. Step 4: Simplify right side
    424,396.88x = 127,083,421,710.57
  5. Step 5: Solve for x
    x = 127,083,421,710.57/424,396.88
  6. Step 6: Final answer
    x = 299,444.76

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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.