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Finding the Fourth Proportional to 702,393.49, 969,303.02 and 380,103.56

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Solution

The fourth proportional to 702,393.49, 969,303.02 and 380,103.56 is: 524,542.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,393.49 : 969,303.02 = 380,103.56 : x
  2. Step 2: Convert to fraction form
    702,393.49/969,303.02 = 380,103.56/x
  3. Step 3: Cross multiply
    702,393.49x = 969,303.02 × 380,103.56
  4. Step 4: Simplify right side
    702,393.49x = 368,435,528,620.75
  5. Step 5: Solve for x
    x = 368,435,528,620.75/702,393.49
  6. Step 6: Final answer
    x = 524,542.91

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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.