Home / 638,353.02-880,926.96-351,877.89

Finding the Fourth Proportional to 638,353.02, 880,926.96 and 351,877.89

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Solution

The fourth proportional to 638,353.02, 880,926.96 and 351,877.89 is: 485,591.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,353.02 : 880,926.96 = 351,877.89 : x
  2. Step 2: Convert to fraction form
    638,353.02/880,926.96 = 351,877.89/x
  3. Step 3: Cross multiply
    638,353.02x = 880,926.96 × 351,877.89
  4. Step 4: Simplify right side
    638,353.02x = 309,978,719,928.91
  5. Step 5: Solve for x
    x = 309,978,719,928.91/638,353.02
  6. Step 6: Final answer
    x = 485,591.37

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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.