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Finding the Fourth Proportional to 702,519.30, 969,479.28 and 380,229.48

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Solution

The fourth proportional to 702,519.30, 969,479.28 and 380,229.48 is: 524,718.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,519.30 : 969,479.28 = 380,229.48 : x
  2. Step 2: Convert to fraction form
    702,519.30/969,479.28 = 380,229.48/x
  3. Step 3: Cross multiply
    702,519.30x = 969,479.28 × 380,229.48
  4. Step 4: Simplify right side
    702,519.30x = 368,624,602,505.17
  5. Step 5: Solve for x
    x = 368,624,602,505.17/702,519.30
  6. Step 6: Final answer
    x = 524,718.11

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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.