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Finding the Fourth Proportional to 524,908.60, 787,557.30 and 209,591.80

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Solution

The fourth proportional to 524,908.60, 787,557.30 and 209,591.80 is: 314,465.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,908.60 : 787,557.30 = 209,591.80 : x
  2. Step 2: Convert to fraction form
    524,908.60/787,557.30 = 209,591.80/x
  3. Step 3: Cross multiply
    524,908.60x = 787,557.30 × 209,591.80
  4. Step 4: Simplify right side
    524,908.60x = 165,065,552,110.14
  5. Step 5: Solve for x
    x = 165,065,552,110.14/524,908.60
  6. Step 6: Final answer
    x = 314,465.32

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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.