Home / 638,056.92-880,482.54-351,606.36

Finding the Fourth Proportional to 638,056.92, 880,482.54 and 351,606.36

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Solution

The fourth proportional to 638,056.92, 880,482.54 and 351,606.36 is: 485,196.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,056.92 : 880,482.54 = 351,606.36 : x
  2. Step 2: Convert to fraction form
    638,056.92/880,482.54 = 351,606.36/x
  3. Step 3: Cross multiply
    638,056.92x = 880,482.54 × 351,606.36
  4. Step 4: Simplify right side
    638,056.92x = 309,583,260,932.95
  5. Step 5: Solve for x
    x = 309,583,260,932.95/638,056.92
  6. Step 6: Final answer
    x = 485,196.93

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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.