Home / 781,415.76-1,171,890.36-332,134.68

Finding the Fourth Proportional to 781,415.76, 1,171,890.36 and 332,134.68

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Solution

The fourth proportional to 781,415.76, 1,171,890.36 and 332,134.68 is: 498,102.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,415.76 : 1,171,890.36 = 332,134.68 : x
  2. Step 2: Convert to fraction form
    781,415.76/1,171,890.36 = 332,134.68/x
  3. Step 3: Cross multiply
    781,415.76x = 1,171,890.36 × 332,134.68
  4. Step 4: Simplify right side
    781,415.76x = 389,225,429,713.69
  5. Step 5: Solve for x
    x = 389,225,429,713.69/781,415.76
  6. Step 6: Final answer
    x = 498,102.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.