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Finding the Fourth Proportional to 463,874.72, 640,136.25 and 272,900.39

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Solution

The fourth proportional to 463,874.72, 640,136.25 and 272,900.39 is: 376,596.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,874.72 : 640,136.25 = 272,900.39 : x
  2. Step 2: Convert to fraction form
    463,874.72/640,136.25 = 272,900.39/x
  3. Step 3: Cross multiply
    463,874.72x = 640,136.25 × 272,900.39
  4. Step 4: Simplify right side
    463,874.72x = 174,693,429,077.46
  5. Step 5: Solve for x
    x = 174,693,429,077.46/463,874.72
  6. Step 6: Final answer
    x = 376,596.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.