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Finding the Fourth Proportional to 585,015.66, 807,315.39 and 330,351.66

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Solution

The fourth proportional to 585,015.66, 807,315.39 and 330,351.66 is: 455,881.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,015.66 : 807,315.39 = 330,351.66 : x
  2. Step 2: Convert to fraction form
    585,015.66/807,315.39 = 330,351.66/x
  3. Step 3: Cross multiply
    585,015.66x = 807,315.39 × 330,351.66
  4. Step 4: Simplify right side
    585,015.66x = 266,697,979,230.05
  5. Step 5: Solve for x
    x = 266,697,979,230.05/585,015.66
  6. Step 6: Final answer
    x = 455,881.78

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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.