Home / 694,126.11-1,039,712.63-409,509.93

Finding the Fourth Proportional to 694,126.11, 1,039,712.63 and 409,509.93

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Solution

The fourth proportional to 694,126.11, 1,039,712.63 and 409,509.93 is: 613,393.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,126.11 : 1,039,712.63 = 409,509.93 : x
  2. Step 2: Convert to fraction form
    694,126.11/1,039,712.63 = 409,509.93/x
  3. Step 3: Cross multiply
    694,126.11x = 1,039,712.63 × 409,509.93
  4. Step 4: Simplify right side
    694,126.11x = 425,772,647,355.19
  5. Step 5: Solve for x
    x = 425,772,647,355.19/694,126.11
  6. Step 6: Final answer
    x = 613,393.79

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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.