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Finding the Fourth Proportional to 424,396.02, 636,874.47 and 199,820.67

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Solution

The fourth proportional to 424,396.02, 636,874.47 and 199,820.67 is: 299,863.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,396.02 : 636,874.47 = 199,820.67 : x
  2. Step 2: Convert to fraction form
    424,396.02/636,874.47 = 199,820.67/x
  3. Step 3: Cross multiply
    424,396.02x = 636,874.47 × 199,820.67
  4. Step 4: Simplify right side
    424,396.02x = 127,260,683,301.30
  5. Step 5: Solve for x
    x = 127,260,683,301.30/424,396.02
  6. Step 6: Final answer
    x = 299,863.05

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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.