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Finding the Fourth Proportional to 703,008.69, 970,147.15 and 380,711.41

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Solution

The fourth proportional to 703,008.69, 970,147.15 and 380,711.41 is: 525,379.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,008.69 : 970,147.15 = 380,711.41 : x
  2. Step 2: Convert to fraction form
    703,008.69/970,147.15 = 380,711.41/x
  3. Step 3: Cross multiply
    703,008.69x = 970,147.15 × 380,711.41
  4. Step 4: Simplify right side
    703,008.69x = 369,346,089,383.98
  5. Step 5: Solve for x
    x = 369,346,089,383.98/703,008.69
  6. Step 6: Final answer
    x = 525,379.12

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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.