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Finding the Fourth Proportional to 518,050.81, 775,641.36 and 264,785.88

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Solution

The fourth proportional to 518,050.81, 775,641.36 and 264,785.88 is: 396,445.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,050.81 : 775,641.36 = 264,785.88 : x
  2. Step 2: Convert to fraction form
    518,050.81/775,641.36 = 264,785.88/x
  3. Step 3: Cross multiply
    518,050.81x = 775,641.36 × 264,785.88
  4. Step 4: Simplify right side
    518,050.81x = 205,378,880,072.00
  5. Step 5: Solve for x
    x = 205,378,880,072.00/518,050.81
  6. Step 6: Final answer
    x = 396,445.44

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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.