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Finding the Fourth Proportional to 788,793.90, 1,183,190.85 and 368,889.90

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Solution

The fourth proportional to 788,793.90, 1,183,190.85 and 368,889.90 is: 553,334.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,793.90 : 1,183,190.85 = 368,889.90 : x
  2. Step 2: Convert to fraction form
    788,793.90/1,183,190.85 = 368,889.90/x
  3. Step 3: Cross multiply
    788,793.90x = 1,183,190.85 × 368,889.90
  4. Step 4: Simplify right side
    788,793.90x = 436,467,154,337.42
  5. Step 5: Solve for x
    x = 436,467,154,337.42/788,793.90
  6. Step 6: Final answer
    x = 553,334.85

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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.