Home / 827,121.06-1,141,289.73-487,543.14

Finding the Fourth Proportional to 827,121.06, 1,141,289.73 and 487,543.14

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Solution

The fourth proportional to 827,121.06, 1,141,289.73 and 487,543.14 is: 672,728.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,121.06 : 1,141,289.73 = 487,543.14 : x
  2. Step 2: Convert to fraction form
    827,121.06/1,141,289.73 = 487,543.14/x
  3. Step 3: Cross multiply
    827,121.06x = 1,141,289.73 × 487,543.14
  4. Step 4: Simplify right side
    827,121.06x = 556,427,978,613.95
  5. Step 5: Solve for x
    x = 556,427,978,613.95/827,121.06
  6. Step 6: Final answer
    x = 672,728.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.