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Finding the Fourth Proportional to 703,030.20, 970,176.80 and 380,732.92

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Solution

The fourth proportional to 703,030.20, 970,176.80 and 380,732.92 is: 525,408.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,030.20 : 970,176.80 = 380,732.92 : x
  2. Step 2: Convert to fraction form
    703,030.20/970,176.80 = 380,732.92/x
  3. Step 3: Cross multiply
    703,030.20x = 970,176.80 × 380,732.92
  4. Step 4: Simplify right side
    703,030.20x = 369,378,245,980.26
  5. Step 5: Solve for x
    x = 369,378,245,980.26/703,030.20
  6. Step 6: Final answer
    x = 525,408.79

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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.