Home / 851,271.80-1,276,629.84-282,500.12

Finding the Fourth Proportional to 851,271.80, 1,276,629.84 and 282,500.12

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Solution

The fourth proportional to 851,271.80, 1,276,629.84 and 282,500.12 is: 423,657.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,271.80 : 1,276,629.84 = 282,500.12 : x
  2. Step 2: Convert to fraction form
    851,271.80/1,276,629.84 = 282,500.12/x
  3. Step 3: Cross multiply
    851,271.80x = 1,276,629.84 × 282,500.12
  4. Step 4: Simplify right side
    851,271.80x = 360,648,082,995.58
  5. Step 5: Solve for x
    x = 360,648,082,995.58/851,271.80
  6. Step 6: Final answer
    x = 423,657.97

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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.