Home / 642,270.20-963,113.70-242,778.20

Finding the Fourth Proportional to 642,270.20, 963,113.70 and 242,778.20

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Solution

The fourth proportional to 642,270.20, 963,113.70 and 242,778.20 is: 364,057.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,270.20 : 963,113.70 = 242,778.20 : x
  2. Step 2: Convert to fraction form
    642,270.20/963,113.70 = 242,778.20/x
  3. Step 3: Cross multiply
    642,270.20x = 963,113.70 × 242,778.20
  4. Step 4: Simplify right side
    642,270.20x = 233,823,010,481.34
  5. Step 5: Solve for x
    x = 233,823,010,481.34/642,270.20
  6. Step 6: Final answer
    x = 364,057.08

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Double scale
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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.