Home / 1,147,608.71-1,583,695.78-638,311.08

Finding the Fourth Proportional to 1,147,608.71, 1,583,695.78 and 638,311.08

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Solution

The fourth proportional to 1,147,608.71, 1,583,695.78 and 638,311.08 is: 880,866.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,608.71 : 1,583,695.78 = 638,311.08 : x
  2. Step 2: Convert to fraction form
    1,147,608.71/1,583,695.78 = 638,311.08/x
  3. Step 3: Cross multiply
    1,147,608.71x = 1,583,695.78 × 638,311.08
  4. Step 4: Simplify right side
    1,147,608.71x = 1,010,890,563,723.24
  5. Step 5: Solve for x
    x = 1,010,890,563,723.24/1,147,608.71
  6. Step 6: Final answer
    x = 880,866.94

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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.