Home / 1,219,497.40-1,829,246.10-378,134.20

Finding the Fourth Proportional to 1,219,497.40, 1,829,246.10 and 378,134.20

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Solution

The fourth proportional to 1,219,497.40, 1,829,246.10 and 378,134.20 is: 567,201.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,497.40 : 1,829,246.10 = 378,134.20 : x
  2. Step 2: Convert to fraction form
    1,219,497.40/1,829,246.10 = 378,134.20/x
  3. Step 3: Cross multiply
    1,219,497.40x = 1,829,246.10 × 378,134.20
  4. Step 4: Simplify right side
    1,219,497.40x = 691,700,510,626.62
  5. Step 5: Solve for x
    x = 691,700,510,626.62/1,219,497.40
  6. Step 6: Final answer
    x = 567,201.30

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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.