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Finding the Fourth Proportional to 525,035.52, 787,380.48 and 288,645.12

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Solution

The fourth proportional to 525,035.52, 787,380.48 and 288,645.12 is: 432,872.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,035.52 : 787,380.48 = 288,645.12 : x
  2. Step 2: Convert to fraction form
    525,035.52/787,380.48 = 288,645.12/x
  3. Step 3: Cross multiply
    525,035.52x = 787,380.48 × 288,645.12
  4. Step 4: Simplify right side
    525,035.52x = 227,273,533,135.26
  5. Step 5: Solve for x
    x = 227,273,533,135.26/525,035.52
  6. Step 6: Final answer
    x = 432,872.68

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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.