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Finding the Fourth Proportional to 702,692.39, 969,715.82 and 380,402.49

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Solution

The fourth proportional to 702,692.39, 969,715.82 and 380,402.49 is: 524,955.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,692.39 : 969,715.82 = 380,402.49 : x
  2. Step 2: Convert to fraction form
    702,692.39/969,715.82 = 380,402.49/x
  3. Step 3: Cross multiply
    702,692.39x = 969,715.82 × 380,402.49
  4. Step 4: Simplify right side
    702,692.39x = 368,882,310,618.38
  5. Step 5: Solve for x
    x = 368,882,310,618.38/702,692.39
  6. Step 6: Final answer
    x = 524,955.61

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1.5x scale

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.