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Finding the Fourth Proportional to 703,221.44, 970,450.25 and 380,931.54

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Solution

The fourth proportional to 703,221.44, 970,450.25 and 380,931.54 is: 525,688.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,221.44 : 970,450.25 = 380,931.54 : x
  2. Step 2: Convert to fraction form
    703,221.44/970,450.25 = 380,931.54/x
  3. Step 3: Cross multiply
    703,221.44x = 970,450.25 × 380,931.54
  4. Step 4: Simplify right side
    703,221.44x = 369,675,106,321.23
  5. Step 5: Solve for x
    x = 369,675,106,321.23/703,221.44
  6. Step 6: Final answer
    x = 525,688.05

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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.