Home / 643,767.50-965,688.15-170,440.56

Finding the Fourth Proportional to 643,767.50, 965,688.15 and 170,440.56

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Solution

The fourth proportional to 643,767.50, 965,688.15 and 170,440.56 is: 255,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,767.50 : 965,688.15 = 170,440.56 : x
  2. Step 2: Convert to fraction form
    643,767.50/965,688.15 = 170,440.56/x
  3. Step 3: Cross multiply
    643,767.50x = 965,688.15 × 170,440.56
  4. Step 4: Simplify right side
    643,767.50x = 164,592,423,390.72
  5. Step 5: Solve for x
    x = 164,592,423,390.72/643,767.50
  6. Step 6: Final answer
    x = 255,670.60

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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.