Home / 1,328,304.15-1,992,242.39-381,459.51

Finding the Fourth Proportional to 1,328,304.15, 1,992,242.39 and 381,459.51

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Solution

The fourth proportional to 1,328,304.15, 1,992,242.39 and 381,459.51 is: 572,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,304.15 : 1,992,242.39 = 381,459.51 : x
  2. Step 2: Convert to fraction form
    1,328,304.15/1,992,242.39 = 381,459.51/x
  3. Step 3: Cross multiply
    1,328,304.15x = 1,992,242.39 × 381,459.51
  4. Step 4: Simplify right side
    1,328,304.15x = 759,959,803,983.33
  5. Step 5: Solve for x
    x = 759,959,803,983.33/1,328,304.15
  6. Step 6: Final answer
    x = 572,127.85

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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.