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Finding the Fourth Proportional to 518,314.33, 777,471.49 and 518,314.33

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Solution

The fourth proportional to 518,314.33, 777,471.49 and 518,314.33 is: 777,471.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,314.33 : 777,471.49 = 518,314.33 : x
  2. Step 2: Convert to fraction form
    518,314.33/777,471.49 = 518,314.33/x
  3. Step 3: Cross multiply
    518,314.33x = 777,471.49 × 518,314.33
  4. Step 4: Simplify right side
    518,314.33x = 402,974,610,546.09
  5. Step 5: Solve for x
    x = 402,974,610,546.09/518,314.33
  6. Step 6: Final answer
    x = 777,471.49

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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.