Home / 783,689.40-1,175,644.78-251,085.80

Finding the Fourth Proportional to 783,689.40, 1,175,644.78 and 251,085.80

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Solution

The fourth proportional to 783,689.40, 1,175,644.78 and 251,085.80 is: 376,664.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    783,689.40 : 1,175,644.78 = 251,085.80 : x
  2. Step 2: Convert to fraction form
    783,689.40/1,175,644.78 = 251,085.80/x
  3. Step 3: Cross multiply
    783,689.40x = 1,175,644.78 × 251,085.80
  4. Step 4: Simplify right side
    783,689.40x = 295,187,710,102.12
  5. Step 5: Solve for x
    x = 295,187,710,102.12/783,689.40
  6. Step 6: Final answer
    x = 376,664.16

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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.