Home / 642,212.20-963,026.70-242,720.20

Finding the Fourth Proportional to 642,212.20, 963,026.70 and 242,720.20

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Solution

The fourth proportional to 642,212.20, 963,026.70 and 242,720.20 is: 363,970.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,212.20 : 963,026.70 = 242,720.20 : x
  2. Step 2: Convert to fraction form
    642,212.20/963,026.70 = 242,720.20/x
  3. Step 3: Cross multiply
    642,212.20x = 963,026.70 × 242,720.20
  4. Step 4: Simplify right side
    642,212.20x = 233,746,033,229.34
  5. Step 5: Solve for x
    x = 233,746,033,229.34/642,212.20
  6. Step 6: Final answer
    x = 363,970.09

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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.