Home / 865,603.35-1,298,431.53-296,976.51

Finding the Fourth Proportional to 865,603.35, 1,298,431.53 and 296,976.51

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Solution

The fourth proportional to 865,603.35, 1,298,431.53 and 296,976.51 is: 445,473.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,603.35 : 1,298,431.53 = 296,976.51 : x
  2. Step 2: Convert to fraction form
    865,603.35/1,298,431.53 = 296,976.51/x
  3. Step 3: Cross multiply
    865,603.35x = 1,298,431.53 × 296,976.51
  4. Step 4: Simplify right side
    865,603.35x = 385,603,664,253.36
  5. Step 5: Solve for x
    x = 385,603,664,253.36/865,603.35
  6. Step 6: Final answer
    x = 445,473.86

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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.