Home / 784,911.20-1,175,617.20-644,943.20

Finding the Fourth Proportional to 784,911.20, 1,175,617.20 and 644,943.20

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Solution

The fourth proportional to 784,911.20, 1,175,617.20 and 644,943.20 is: 965,977.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,911.20 : 1,175,617.20 = 644,943.20 : x
  2. Step 2: Convert to fraction form
    784,911.20/1,175,617.20 = 644,943.20/x
  3. Step 3: Cross multiply
    784,911.20x = 1,175,617.20 × 644,943.20
  4. Step 4: Simplify right side
    784,911.20x = 758,206,318,943.04
  5. Step 5: Solve for x
    x = 758,206,318,943.04/784,911.20
  6. Step 6: Final answer
    x = 965,977.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.