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Finding the Fourth Proportional to 524,801.20, 787,590.60 and 209,484.40

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Solution

The fourth proportional to 524,801.20, 787,590.60 and 209,484.40 is: 314,381.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,801.20 : 787,590.60 = 209,484.40 : x
  2. Step 2: Convert to fraction form
    524,801.20/787,590.60 = 209,484.40/x
  3. Step 3: Cross multiply
    524,801.20x = 787,590.60 × 209,484.40
  4. Step 4: Simplify right side
    524,801.20x = 164,987,944,286.64
  5. Step 5: Solve for x
    x = 164,987,944,286.64/524,801.20
  6. Step 6: Final answer
    x = 314,381.80

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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.