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Finding the Fourth Proportional to 403,786.74, 604,969.22 and 359,804.90

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Solution

The fourth proportional to 403,786.74, 604,969.22 and 359,804.90 is: 539,073.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,786.74 : 604,969.22 = 359,804.90 : x
  2. Step 2: Convert to fraction form
    403,786.74/604,969.22 = 359,804.90/x
  3. Step 3: Cross multiply
    403,786.74x = 604,969.22 × 359,804.90
  4. Step 4: Simplify right side
    403,786.74x = 217,670,889,705.18
  5. Step 5: Solve for x
    x = 217,670,889,705.18/403,786.74
  6. Step 6: Final answer
    x = 539,073.89

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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.