Home / 646,031.18-969,135.41-219,452.50

Finding the Fourth Proportional to 646,031.18, 969,135.41 and 219,452.50

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Solution

The fourth proportional to 646,031.18, 969,135.41 and 219,452.50 is: 329,208.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,031.18 : 969,135.41 = 219,452.50 : x
  2. Step 2: Convert to fraction form
    646,031.18/969,135.41 = 219,452.50/x
  3. Step 3: Cross multiply
    646,031.18x = 969,135.41 × 219,452.50
  4. Step 4: Simplify right side
    646,031.18x = 212,679,186,688.82
  5. Step 5: Solve for x
    x = 212,679,186,688.82/646,031.18
  6. Step 6: Final answer
    x = 329,208.86

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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.