Home / 851,561.50-1,275,896.27-513,892.63

Finding the Fourth Proportional to 851,561.50, 1,275,896.27 and 513,892.63

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Solution

The fourth proportional to 851,561.50, 1,275,896.27 and 513,892.63 is: 769,966.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,561.50 : 1,275,896.27 = 513,892.63 : x
  2. Step 2: Convert to fraction form
    851,561.50/1,275,896.27 = 513,892.63/x
  3. Step 3: Cross multiply
    851,561.50x = 1,275,896.27 × 513,892.63
  4. Step 4: Simplify right side
    851,561.50x = 655,673,689,797.49
  5. Step 5: Solve for x
    x = 655,673,689,797.49/851,561.50
  6. Step 6: Final answer
    x = 769,966.34

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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.