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Finding the Fourth Proportional to 497,707.28, 686,851.08 and 271,356.56

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Solution

The fourth proportional to 497,707.28, 686,851.08 and 271,356.56 is: 374,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,707.28 : 686,851.08 = 271,356.56 : x
  2. Step 2: Convert to fraction form
    497,707.28/686,851.08 = 271,356.56/x
  3. Step 3: Cross multiply
    497,707.28x = 686,851.08 × 271,356.56
  4. Step 4: Simplify right side
    497,707.28x = 186,381,546,301.09
  5. Step 5: Solve for x
    x = 186,381,546,301.09/497,707.28
  6. Step 6: Final answer
    x = 374,480.25

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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.