Home / 397,890.45-596,776.32-145,111.53

Finding the Fourth Proportional to 397,890.45, 596,776.32 and 145,111.53

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Solution

The fourth proportional to 397,890.45, 596,776.32 and 145,111.53 is: 217,645.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,890.45 : 596,776.32 = 145,111.53 : x
  2. Step 2: Convert to fraction form
    397,890.45/596,776.32 = 145,111.53/x
  3. Step 3: Cross multiply
    397,890.45x = 596,776.32 × 145,111.53
  4. Step 4: Simplify right side
    397,890.45x = 86,599,124,862.97
  5. Step 5: Solve for x
    x = 86,599,124,862.97/397,890.45
  6. Step 6: Final answer
    x = 217,645.65

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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.