Home / 497,805.28-686,970.02-271,450.78

Finding the Fourth Proportional to 497,805.28, 686,970.02 and 271,450.78

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Solution

The fourth proportional to 497,805.28, 686,970.02 and 271,450.78 is: 374,601.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,805.28 : 686,970.02 = 271,450.78 : x
  2. Step 2: Convert to fraction form
    497,805.28/686,970.02 = 271,450.78/x
  3. Step 3: Cross multiply
    497,805.28x = 686,970.02 × 271,450.78
  4. Step 4: Simplify right side
    497,805.28x = 186,478,547,765.62
  5. Step 5: Solve for x
    x = 186,478,547,765.62/497,805.28
  6. Step 6: Final answer
    x = 374,601.39

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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.