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Finding the Fourth Proportional to 703,059.95, 970,221.89 and 380,769.86

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Solution

The fourth proportional to 703,059.95, 970,221.89 and 380,769.86 is: 525,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,059.95 : 970,221.89 = 380,769.86 : x
  2. Step 2: Convert to fraction form
    703,059.95/970,221.89 = 380,769.86/x
  3. Step 3: Cross multiply
    703,059.95x = 970,221.89 × 380,769.86
  4. Step 4: Simplify right side
    703,059.95x = 369,431,249,325.05
  5. Step 5: Solve for x
    x = 369,431,249,325.05/703,059.95
  6. Step 6: Final answer
    x = 525,461.95

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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.