Home / 1,328,305.15-1,992,243.88-381,460.51

Finding the Fourth Proportional to 1,328,305.15, 1,992,243.88 and 381,460.51

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Solution

The fourth proportional to 1,328,305.15, 1,992,243.88 and 381,460.51 is: 572,129.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,305.15 : 1,992,243.88 = 381,460.51 : x
  2. Step 2: Convert to fraction form
    1,328,305.15/1,992,243.88 = 381,460.51/x
  3. Step 3: Cross multiply
    1,328,305.15x = 1,992,243.88 × 381,460.51
  4. Step 4: Simplify right side
    1,328,305.15x = 759,962,366,509.18
  5. Step 5: Solve for x
    x = 759,962,366,509.18/1,328,305.15
  6. Step 6: Final answer
    x = 572,129.35

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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.