Home / 851,478.62-1,276,906.28-282,756.56

Finding the Fourth Proportional to 851,478.62, 1,276,906.28 and 282,756.56

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Solution

The fourth proportional to 851,478.62, 1,276,906.28 and 282,756.56 is: 424,031.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,478.62 : 1,276,906.28 = 282,756.56 : x
  2. Step 2: Convert to fraction form
    851,478.62/1,276,906.28 = 282,756.56/x
  3. Step 3: Cross multiply
    851,478.62x = 1,276,906.28 × 282,756.56
  4. Step 4: Simplify right side
    851,478.62x = 361,053,619,376.88
  5. Step 5: Solve for x
    x = 361,053,619,376.88/851,478.62
  6. Step 6: Final answer
    x = 424,031.34

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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.