Home / 891,449.66-1,230,178.38-498,977.12

Finding the Fourth Proportional to 891,449.66, 1,230,178.38 and 498,977.12

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Solution

The fourth proportional to 891,449.66, 1,230,178.38 and 498,977.12 is: 688,576.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,449.66 : 1,230,178.38 = 498,977.12 : x
  2. Step 2: Convert to fraction form
    891,449.66/1,230,178.38 = 498,977.12/x
  3. Step 3: Cross multiply
    891,449.66x = 1,230,178.38 × 498,977.12
  4. Step 4: Simplify right side
    891,449.66x = 613,830,865,138.67
  5. Step 5: Solve for x
    x = 613,830,865,138.67/891,449.66
  6. Step 6: Final answer
    x = 688,576.03

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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.