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Finding the Fourth Proportional to 518,093.50, 777,104.60 and 318,444.70

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Solution

The fourth proportional to 518,093.50, 777,104.60 and 318,444.70 is: 477,645.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,093.50 : 777,104.60 = 318,444.70 : x
  2. Step 2: Convert to fraction form
    518,093.50/777,104.60 = 318,444.70/x
  3. Step 3: Cross multiply
    518,093.50x = 777,104.60 × 318,444.70
  4. Step 4: Simplify right side
    518,093.50x = 247,464,841,215.62
  5. Step 5: Solve for x
    x = 247,464,841,215.62/518,093.50
  6. Step 6: Final answer
    x = 477,645.14

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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.