Home / 1,151,981.65-1,589,772.86-628,720.84

Finding the Fourth Proportional to 1,151,981.65, 1,589,772.86 and 628,720.84

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Solution

The fourth proportional to 1,151,981.65, 1,589,772.86 and 628,720.84 is: 867,655.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,981.65 : 1,589,772.86 = 628,720.84 : x
  2. Step 2: Convert to fraction form
    1,151,981.65/1,589,772.86 = 628,720.84/x
  3. Step 3: Cross multiply
    1,151,981.65x = 1,589,772.86 × 628,720.84
  4. Step 4: Simplify right side
    1,151,981.65x = 999,523,327,948.40
  5. Step 5: Solve for x
    x = 999,523,327,948.40/1,151,981.65
  6. Step 6: Final answer
    x = 867,655.60

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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.