Home / 808,066.35-1,115,138.78-445,503.06

Finding the Fourth Proportional to 808,066.35, 1,115,138.78 and 445,503.06

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Solution

The fourth proportional to 808,066.35, 1,115,138.78 and 445,503.06 is: 614,798.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,066.35 : 1,115,138.78 = 445,503.06 : x
  2. Step 2: Convert to fraction form
    808,066.35/1,115,138.78 = 445,503.06/x
  3. Step 3: Cross multiply
    808,066.35x = 1,115,138.78 × 445,503.06
  4. Step 4: Simplify right side
    808,066.35x = 496,797,738,814.67
  5. Step 5: Solve for x
    x = 496,797,738,814.67/808,066.35
  6. Step 6: Final answer
    x = 614,798.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.