Home / 746,390.70-1,119,586.05-185,425.20

Finding the Fourth Proportional to 746,390.70, 1,119,586.05 and 185,425.20

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Solution

The fourth proportional to 746,390.70, 1,119,586.05 and 185,425.20 is: 278,137.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    746,390.70 : 1,119,586.05 = 185,425.20 : x
  2. Step 2: Convert to fraction form
    746,390.70/1,119,586.05 = 185,425.20/x
  3. Step 3: Cross multiply
    746,390.70x = 1,119,586.05 × 185,425.20
  4. Step 4: Simplify right side
    746,390.70x = 207,599,467,238.46
  5. Step 5: Solve for x
    x = 207,599,467,238.46/746,390.70
  6. Step 6: Final answer
    x = 278,137.80

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.