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Finding the Fourth Proportional to 703,267.83, 970,512.12 and 380,977.11

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Solution

The fourth proportional to 703,267.83, 970,512.12 and 380,977.11 is: 525,749.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,267.83 : 970,512.12 = 380,977.11 : x
  2. Step 2: Convert to fraction form
    703,267.83/970,512.12 = 380,977.11/x
  3. Step 3: Cross multiply
    703,267.83x = 970,512.12 × 380,977.11
  4. Step 4: Simplify right side
    703,267.83x = 369,742,902,697.57
  5. Step 5: Solve for x
    x = 369,742,902,697.57/703,267.83
  6. Step 6: Final answer
    x = 525,749.77

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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.