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Finding the Fourth Proportional to 703,048.30, 970,207.43 and 380,758.76

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Solution

The fourth proportional to 703,048.30, 970,207.43 and 380,758.76 is: 525,447.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,048.30 : 970,207.43 = 380,758.76 : x
  2. Step 2: Convert to fraction form
    703,048.30/970,207.43 = 380,758.76/x
  3. Step 3: Cross multiply
    703,048.30x = 970,207.43 × 380,758.76
  4. Step 4: Simplify right side
    703,048.30x = 369,414,977,989.59
  5. Step 5: Solve for x
    x = 369,414,977,989.59/703,048.30
  6. Step 6: Final answer
    x = 525,447.51

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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.