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Finding the Fourth Proportional to 702,842.81, 969,923.54 and 380,553.13

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Solution

The fourth proportional to 702,842.81, 969,923.54 and 380,553.13 is: 525,163.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    702,842.81 : 969,923.54 = 380,553.13 : x
  2. Step 2: Convert to fraction form
    702,842.81/969,923.54 = 380,553.13/x
  3. Step 3: Cross multiply
    702,842.81x = 969,923.54 × 380,553.13
  4. Step 4: Simplify right side
    702,842.81x = 369,107,439,007.68
  5. Step 5: Solve for x
    x = 369,107,439,007.68/702,842.81
  6. Step 6: Final answer
    x = 525,163.57

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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.