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Finding the Fourth Proportional to 788,894.70, 1,183,342.05 and 488,400.90

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Solution

The fourth proportional to 788,894.70, 1,183,342.05 and 488,400.90 is: 732,601.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,894.70 : 1,183,342.05 = 488,400.90 : x
  2. Step 2: Convert to fraction form
    788,894.70/1,183,342.05 = 488,400.90/x
  3. Step 3: Cross multiply
    788,894.70x = 1,183,342.05 × 488,400.90
  4. Step 4: Simplify right side
    788,894.70x = 577,945,322,227.85
  5. Step 5: Solve for x
    x = 577,945,322,227.85/788,894.70
  6. Step 6: Final answer
    x = 732,601.35

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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.