Home / 1,147,059.47-1,582,905.84-630,811.78

Finding the Fourth Proportional to 1,147,059.47, 1,582,905.84 and 630,811.78

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Solution

The fourth proportional to 1,147,059.47, 1,582,905.84 and 630,811.78 is: 870,500.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,059.47 : 1,582,905.84 = 630,811.78 : x
  2. Step 2: Convert to fraction form
    1,147,059.47/1,582,905.84 = 630,811.78/x
  3. Step 3: Cross multiply
    1,147,059.47x = 1,582,905.84 × 630,811.78
  4. Step 4: Simplify right side
    1,147,059.47x = 998,515,642,588.27
  5. Step 5: Solve for x
    x = 998,515,642,588.27/1,147,059.47
  6. Step 6: Final answer
    x = 870,500.33

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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.