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Finding the Fourth Proportional to 515,152.40, 772,728.60 and 488,908.40

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Solution

The fourth proportional to 515,152.40, 772,728.60 and 488,908.40 is: 733,362.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,152.40 : 772,728.60 = 488,908.40 : x
  2. Step 2: Convert to fraction form
    515,152.40/772,728.60 = 488,908.40/x
  3. Step 3: Cross multiply
    515,152.40x = 772,728.60 × 488,908.40
  4. Step 4: Simplify right side
    515,152.40x = 377,793,503,460.24
  5. Step 5: Solve for x
    x = 377,793,503,460.24/515,152.40
  6. Step 6: Final answer
    x = 733,362.60

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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.