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Finding the Fourth Proportional to 524,339.06, 723,479.42 and 306,505.66

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Solution

The fourth proportional to 524,339.06, 723,479.42 and 306,505.66 is: 422,914.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,339.06 : 723,479.42 = 306,505.66 : x
  2. Step 2: Convert to fraction form
    524,339.06/723,479.42 = 306,505.66/x
  3. Step 3: Cross multiply
    524,339.06x = 723,479.42 × 306,505.66
  4. Step 4: Simplify right side
    524,339.06x = 221,750,535,558.17
  5. Step 5: Solve for x
    x = 221,750,535,558.17/524,339.06
  6. Step 6: Final answer
    x = 422,914.39

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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.