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Finding the Fourth Proportional to 703,245.50, 970,481.76 and 380,955.59

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Solution

The fourth proportional to 703,245.50, 970,481.76 and 380,955.59 is: 525,720.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,245.50 : 970,481.76 = 380,955.59 : x
  2. Step 2: Convert to fraction form
    703,245.50/970,481.76 = 380,955.59/x
  3. Step 3: Cross multiply
    703,245.50x = 970,481.76 × 380,955.59
  4. Step 4: Simplify right side
    703,245.50x = 369,710,451,465.04
  5. Step 5: Solve for x
    x = 369,710,451,465.04/703,245.50
  6. Step 6: Final answer
    x = 525,720.32

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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.