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Finding the Fourth Proportional to 702,628.94, 969,627.12 and 380,338.94

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Solution

The fourth proportional to 702,628.94, 969,627.12 and 380,338.94 is: 524,867.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,628.94 : 969,627.12 = 380,338.94 : x
  2. Step 2: Convert to fraction form
    702,628.94/969,627.12 = 380,338.94/x
  3. Step 3: Cross multiply
    702,628.94x = 969,627.12 × 380,338.94
  4. Step 4: Simplify right side
    702,628.94x = 368,786,946,167.92
  5. Step 5: Solve for x
    x = 368,786,946,167.92/702,628.94
  6. Step 6: Final answer
    x = 524,867.29

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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.