Home / 638,196.48-880,717.14-351,727.02

Finding the Fourth Proportional to 638,196.48, 880,717.14 and 351,727.02

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Solution

The fourth proportional to 638,196.48, 880,717.14 and 351,727.02 is: 485,386.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,196.48 : 880,717.14 = 351,727.02 : x
  2. Step 2: Convert to fraction form
    638,196.48/880,717.14 = 351,727.02/x
  3. Step 3: Cross multiply
    638,196.48x = 880,717.14 × 351,727.02
  4. Step 4: Simplify right side
    638,196.48x = 309,772,015,115.12
  5. Step 5: Solve for x
    x = 309,772,015,115.12/638,196.48
  6. Step 6: Final answer
    x = 485,386.59

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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.