Home / 642,097.82-963,156.16-305,172.85

Finding the Fourth Proportional to 642,097.82, 963,156.16 and 305,172.85

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Solution

The fourth proportional to 642,097.82, 963,156.16 and 305,172.85 is: 457,763.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,097.82 : 963,156.16 = 305,172.85 : x
  2. Step 2: Convert to fraction form
    642,097.82/963,156.16 = 305,172.85/x
  3. Step 3: Cross multiply
    642,097.82x = 963,156.16 × 305,172.85
  4. Step 4: Simplify right side
    642,097.82x = 293,929,110,342.26
  5. Step 5: Solve for x
    x = 293,929,110,342.26/642,097.82
  6. Step 6: Final answer
    x = 457,763.76

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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.