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Finding the Fourth Proportional to 384,924.80, 576,220.80 and 290,835.20

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Solution

The fourth proportional to 384,924.80, 576,220.80 and 290,835.20 is: 435,371.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,924.80 : 576,220.80 = 290,835.20 : x
  2. Step 2: Convert to fraction form
    384,924.80/576,220.80 = 290,835.20/x
  3. Step 3: Cross multiply
    384,924.80x = 576,220.80 × 290,835.20
  4. Step 4: Simplify right side
    384,924.80x = 167,585,291,612.16
  5. Step 5: Solve for x
    x = 167,585,291,612.16/384,924.80
  6. Step 6: Final answer
    x = 435,371.51

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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.