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Finding the Fourth Proportional to 480,585.68, 720,988.01 and 255,827.69

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Solution

The fourth proportional to 480,585.68, 720,988.01 and 255,827.69 is: 383,799.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,585.68 : 720,988.01 = 255,827.69 : x
  2. Step 2: Convert to fraction form
    480,585.68/720,988.01 = 255,827.69/x
  3. Step 3: Cross multiply
    480,585.68x = 720,988.01 × 255,827.69
  4. Step 4: Simplify right side
    480,585.68x = 184,448,692,231.92
  5. Step 5: Solve for x
    x = 184,448,692,231.92/480,585.68
  6. Step 6: Final answer
    x = 383,799.81

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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.