Home / 638,264.37-880,810.98-351,795.45

Finding the Fourth Proportional to 638,264.37, 880,810.98 and 351,795.45

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Solution

The fourth proportional to 638,264.37, 880,810.98 and 351,795.45 is: 485,481.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,264.37 : 880,810.98 = 351,795.45 : x
  2. Step 2: Convert to fraction form
    638,264.37/880,810.98 = 351,795.45/x
  3. Step 3: Cross multiply
    638,264.37x = 880,810.98 × 351,795.45
  4. Step 4: Simplify right side
    638,264.37x = 309,865,295,074.04
  5. Step 5: Solve for x
    x = 309,865,295,074.04/638,264.37
  6. Step 6: Final answer
    x = 485,481.11

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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.