Home / 1,145,342.50-1,718,018.75-387,187.97

Finding the Fourth Proportional to 1,145,342.50, 1,718,018.75 and 387,187.97

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Solution

The fourth proportional to 1,145,342.50, 1,718,018.75 and 387,187.97 is: 580,783.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,342.50 : 1,718,018.75 = 387,187.97 : x
  2. Step 2: Convert to fraction form
    1,145,342.50/1,718,018.75 = 387,187.97/x
  3. Step 3: Cross multiply
    1,145,342.50x = 1,718,018.75 × 387,187.97
  4. Step 4: Simplify right side
    1,145,342.50x = 665,196,184,612.31
  5. Step 5: Solve for x
    x = 665,196,184,612.31/1,145,342.50
  6. Step 6: Final answer
    x = 580,783.64

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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.