Home / 1,274,778.76-1,912,221.18-376,220.68

Finding the Fourth Proportional to 1,274,778.76, 1,912,221.18 and 376,220.68

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Solution

The fourth proportional to 1,274,778.76, 1,912,221.18 and 376,220.68 is: 564,346.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,778.76 : 1,912,221.18 = 376,220.68 : x
  2. Step 2: Convert to fraction form
    1,274,778.76/1,912,221.18 = 376,220.68/x
  3. Step 3: Cross multiply
    1,274,778.76x = 1,912,221.18 × 376,220.68
  4. Step 4: Simplify right side
    1,274,778.76x = 719,417,152,650.00
  5. Step 5: Solve for x
    x = 719,417,152,650.00/1,274,778.76
  6. Step 6: Final answer
    x = 564,346.67

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Double scale
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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.