Home / 1,147,065.89-1,582,991.56-630,859.70

Finding the Fourth Proportional to 1,147,065.89, 1,582,991.56 and 630,859.70

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Solution

The fourth proportional to 1,147,065.89, 1,582,991.56 and 630,859.70 is: 870,608.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,065.89 : 1,582,991.56 = 630,859.70 : x
  2. Step 2: Convert to fraction form
    1,147,065.89/1,582,991.56 = 630,859.70/x
  3. Step 3: Cross multiply
    1,147,065.89x = 1,582,991.56 × 630,859.70
  4. Step 4: Simplify right side
    1,147,065.89x = 998,645,580,644.13
  5. Step 5: Solve for x
    x = 998,645,580,644.13/1,147,065.89
  6. Step 6: Final answer
    x = 870,608.74

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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.