Home / 1,143,219.24-1,715,185.78-688,309.16

Finding the Fourth Proportional to 1,143,219.24, 1,715,185.78 and 688,309.16

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Solution

The fourth proportional to 1,143,219.24, 1,715,185.78 and 688,309.16 is: 1,032,678.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,219.24 : 1,715,185.78 = 688,309.16 : x
  2. Step 2: Convert to fraction form
    1,143,219.24/1,715,185.78 = 688,309.16/x
  3. Step 3: Cross multiply
    1,143,219.24x = 1,715,185.78 × 688,309.16
  4. Step 4: Simplify right side
    1,143,219.24x = 1,180,578,083,475.74
  5. Step 5: Solve for x
    x = 1,180,578,083,475.74/1,143,219.24
  6. Step 6: Final answer
    x = 1,032,678.63

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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.