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Finding the Fourth Proportional to 463,912.58, 640,188.48 and 272,938.26

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Solution

The fourth proportional to 463,912.58, 640,188.48 and 272,938.26 is: 376,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,912.58 : 640,188.48 = 272,938.26 : x
  2. Step 2: Convert to fraction form
    463,912.58/640,188.48 = 272,938.26/x
  3. Step 3: Cross multiply
    463,912.58x = 640,188.48 × 272,938.26
  4. Step 4: Simplify right side
    463,912.58x = 174,731,929,803.25
  5. Step 5: Solve for x
    x = 174,731,929,803.25/463,912.58
  6. Step 6: Final answer
    x = 376,648.40

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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.