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Finding the Fourth Proportional to 703,241.30, 970,475.38 and 380,950.40

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Solution

The fourth proportional to 703,241.30, 970,475.38 and 380,950.40 is: 525,712.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,241.30 : 970,475.38 = 380,950.40 : x
  2. Step 2: Convert to fraction form
    703,241.30/970,475.38 = 380,950.40/x
  3. Step 3: Cross multiply
    703,241.30x = 970,475.38 × 380,950.40
  4. Step 4: Simplify right side
    703,241.30x = 369,702,984,201.15
  5. Step 5: Solve for x
    x = 369,702,984,201.15/703,241.30
  6. Step 6: Final answer
    x = 525,712.84

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Double scale
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Similar ratio
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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.