Home / 1,243,284.84-1,865,517.75-644,134.32

Finding the Fourth Proportional to 1,243,284.84, 1,865,517.75 and 644,134.32

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Solution

The fourth proportional to 1,243,284.84, 1,865,517.75 and 644,134.32 is: 966,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,284.84 : 1,865,517.75 = 644,134.32 : x
  2. Step 2: Convert to fraction form
    1,243,284.84/1,865,517.75 = 644,134.32/x
  3. Step 3: Cross multiply
    1,243,284.84x = 1,865,517.75 × 644,134.32
  4. Step 4: Simplify right side
    1,243,284.84x = 1,201,644,007,344.18
  5. Step 5: Solve for x
    x = 1,201,644,007,344.18/1,243,284.84
  6. Step 6: Final answer
    x = 966,507.41

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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.