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Finding the Fourth Proportional to 507,368.25, 760,391.39 and 282,719.61

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Solution

The fourth proportional to 507,368.25, 760,391.39 and 282,719.61 is: 423,711.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,368.25 : 760,391.39 = 282,719.61 : x
  2. Step 2: Convert to fraction form
    507,368.25/760,391.39 = 282,719.61/x
  3. Step 3: Cross multiply
    507,368.25x = 760,391.39 × 282,719.61
  4. Step 4: Simplify right side
    507,368.25x = 214,977,555,814.56
  5. Step 5: Solve for x
    x = 214,977,555,814.56/507,368.25
  6. Step 6: Final answer
    x = 423,711.09

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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.