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Finding the Fourth Proportional to 524,625.60, 787,132.80 and 209,308.80

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Solution

The fourth proportional to 524,625.60, 787,132.80 and 209,308.80 is: 314,040.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,625.60 : 787,132.80 = 209,308.80 : x
  2. Step 2: Convert to fraction form
    524,625.60/787,132.80 = 209,308.80/x
  3. Step 3: Cross multiply
    524,625.60x = 787,132.80 × 209,308.80
  4. Step 4: Simplify right side
    524,625.60x = 164,753,821,808.64
  5. Step 5: Solve for x
    x = 164,753,821,808.64/524,625.60
  6. Step 6: Final answer
    x = 314,040.76

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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.