Home / 524,764.20-787,535.10-209,447.40

Finding the Fourth Proportional to 524,764.20, 787,535.10 and 209,447.40

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Solution

The fourth proportional to 524,764.20, 787,535.10 and 209,447.40 is: 314,326.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,764.20 : 787,535.10 = 209,447.40 : x
  2. Step 2: Convert to fraction form
    524,764.20/787,535.10 = 209,447.40/x
  3. Step 3: Cross multiply
    524,764.20x = 787,535.10 × 209,447.40
  4. Step 4: Simplify right side
    524,764.20x = 164,947,179,103.74
  5. Step 5: Solve for x
    x = 164,947,179,103.74/524,764.20
  6. Step 6: Final answer
    x = 314,326.28

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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.