Home / 638,322.29-880,884.76-351,848.53

Finding the Fourth Proportional to 638,322.29, 880,884.76 and 351,848.53

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Solution

The fourth proportional to 638,322.29, 880,884.76 and 351,848.53 is: 485,550.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,322.29 : 880,884.76 = 351,848.53 : x
  2. Step 2: Convert to fraction form
    638,322.29/880,884.76 = 351,848.53/x
  3. Step 3: Cross multiply
    638,322.29x = 880,884.76 × 351,848.53
  4. Step 4: Simplify right side
    638,322.29x = 309,938,006,143.00
  5. Step 5: Solve for x
    x = 309,938,006,143.00/638,322.29
  6. Step 6: Final answer
    x = 485,550.97

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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.