Home / 1,238,599.63-1,709,179.71-687,344.95

Finding the Fourth Proportional to 1,238,599.63, 1,709,179.71 and 687,344.95

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Solution

The fourth proportional to 1,238,599.63, 1,709,179.71 and 687,344.95 is: 948,487.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,238,599.63 : 1,709,179.71 = 687,344.95 : x
  2. Step 2: Convert to fraction form
    1,238,599.63/1,709,179.71 = 687,344.95/x
  3. Step 3: Cross multiply
    1,238,599.63x = 1,709,179.71 × 687,344.95
  4. Step 4: Simplify right side
    1,238,599.63x = 1,174,796,042,310.96
  5. Step 5: Solve for x
    x = 1,174,796,042,310.96/1,238,599.63
  6. Step 6: Final answer
    x = 948,487.32

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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.