Home / 642,009.78-885,949.97-370,089.14

Finding the Fourth Proportional to 642,009.78, 885,949.97 and 370,089.14

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Solution

The fourth proportional to 642,009.78, 885,949.97 and 370,089.14 is: 510,709.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,009.78 : 885,949.97 = 370,089.14 : x
  2. Step 2: Convert to fraction form
    642,009.78/885,949.97 = 370,089.14/x
  3. Step 3: Cross multiply
    642,009.78x = 885,949.97 × 370,089.14
  4. Step 4: Simplify right side
    642,009.78x = 327,880,456,200.13
  5. Step 5: Solve for x
    x = 327,880,456,200.13/642,009.78
  6. Step 6: Final answer
    x = 510,709.44

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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.