Home / 1,302,728.15-1,954,018.10-391,891.25

Finding the Fourth Proportional to 1,302,728.15, 1,954,018.10 and 391,891.25

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Solution

The fourth proportional to 1,302,728.15, 1,954,018.10 and 391,891.25 is: 587,814.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,728.15 : 1,954,018.10 = 391,891.25 : x
  2. Step 2: Convert to fraction form
    1,302,728.15/1,954,018.10 = 391,891.25/x
  3. Step 3: Cross multiply
    1,302,728.15x = 1,954,018.10 × 391,891.25
  4. Step 4: Simplify right side
    1,302,728.15x = 765,762,584,002.08
  5. Step 5: Solve for x
    x = 765,762,584,002.08/1,302,728.15
  6. Step 6: Final answer
    x = 587,814.57

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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.