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Finding the Fourth Proportional to 524,412.20, 787,209.60 and 347,265.20

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Solution

The fourth proportional to 524,412.20, 787,209.60 and 347,265.20 is: 521,289.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,412.20 : 787,209.60 = 347,265.20 : x
  2. Step 2: Convert to fraction form
    524,412.20/787,209.60 = 347,265.20/x
  3. Step 3: Cross multiply
    524,412.20x = 787,209.60 × 347,265.20
  4. Step 4: Simplify right side
    524,412.20x = 273,370,499,185.92
  5. Step 5: Solve for x
    x = 273,370,499,185.92/524,412.20
  6. Step 6: Final answer
    x = 521,289.36

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1.5x scale

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.