Home / 881,169.87-1,216,074.57-499,199.79

Finding the Fourth Proportional to 881,169.87, 1,216,074.57 and 499,199.79

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Solution

The fourth proportional to 881,169.87, 1,216,074.57 and 499,199.79 is: 688,929.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,169.87 : 1,216,074.57 = 499,199.79 : x
  2. Step 2: Convert to fraction form
    881,169.87/1,216,074.57 = 499,199.79/x
  3. Step 3: Cross multiply
    881,169.87x = 1,216,074.57 × 499,199.79
  4. Step 4: Simplify right side
    881,169.87x = 607,064,169,968.34
  5. Step 5: Solve for x
    x = 607,064,169,968.34/881,169.87
  6. Step 6: Final answer
    x = 688,929.79

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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.