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Finding the Fourth Proportional to 702,753.30, 969,799.23 and 380,463.21

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Solution

The fourth proportional to 702,753.30, 969,799.23 and 380,463.21 is: 525,039.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,753.30 : 969,799.23 = 380,463.21 : x
  2. Step 2: Convert to fraction form
    702,753.30/969,799.23 = 380,463.21/x
  3. Step 3: Cross multiply
    702,753.30x = 969,799.23 × 380,463.21
  4. Step 4: Simplify right side
    702,753.30x = 368,972,928,101.33
  5. Step 5: Solve for x
    x = 368,972,928,101.33/702,753.30
  6. Step 6: Final answer
    x = 525,039.05

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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.