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Finding the Fourth Proportional to 480,247.71, 720,345.48 and 243,584.19

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Solution

The fourth proportional to 480,247.71, 720,345.48 and 243,584.19 is: 365,363.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,247.71 : 720,345.48 = 243,584.19 : x
  2. Step 2: Convert to fraction form
    480,247.71/720,345.48 = 243,584.19/x
  3. Step 3: Cross multiply
    480,247.71x = 720,345.48 × 243,584.19
  4. Step 4: Simplify right side
    480,247.71x = 175,464,770,265.96
  5. Step 5: Solve for x
    x = 175,464,770,265.96/480,247.71
  6. Step 6: Final answer
    x = 365,363.05

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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.