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Finding the Fourth Proportional to 703,229.56, 970,461.46 and 380,939.67

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Solution

The fourth proportional to 703,229.56, 970,461.46 and 380,939.67 is: 525,699.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,229.56 : 970,461.46 = 380,939.67 : x
  2. Step 2: Convert to fraction form
    703,229.56/970,461.46 = 380,939.67/x
  3. Step 3: Cross multiply
    703,229.56x = 970,461.46 × 380,939.67
  4. Step 4: Simplify right side
    703,229.56x = 369,687,268,320.12
  5. Step 5: Solve for x
    x = 369,687,268,320.12/703,229.56
  6. Step 6: Final answer
    x = 525,699.27

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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.