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Finding the Fourth Proportional to 703,008.82, 970,147.33 and 380,711.54

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Solution

The fourth proportional to 703,008.82, 970,147.33 and 380,711.54 is: 525,379.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,008.82 : 970,147.33 = 380,711.54 : x
  2. Step 2: Convert to fraction form
    703,008.82/970,147.33 = 380,711.54/x
  3. Step 3: Cross multiply
    703,008.82x = 970,147.33 × 380,711.54
  4. Step 4: Simplify right side
    703,008.82x = 369,346,278,228.67
  5. Step 5: Solve for x
    x = 369,346,278,228.67/703,008.82
  6. Step 6: Final answer
    x = 525,379.30

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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.