Home / 638,172.03-880,672.64-351,692.11

Finding the Fourth Proportional to 638,172.03, 880,672.64 and 351,692.11

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Solution

The fourth proportional to 638,172.03, 880,672.64 and 351,692.11 is: 485,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,172.03 : 880,672.64 = 351,692.11 : x
  2. Step 2: Convert to fraction form
    638,172.03/880,672.64 = 351,692.11/x
  3. Step 3: Cross multiply
    638,172.03x = 880,672.64 × 351,692.11
  4. Step 4: Simplify right side
    638,172.03x = 309,725,618,323.25
  5. Step 5: Solve for x
    x = 309,725,618,323.25/638,172.03
  6. Step 6: Final answer
    x = 485,332.48

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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.