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Finding the Fourth Proportional to 507,579.89, 700,460.28 and 303,639.41

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Solution

The fourth proportional to 507,579.89, 700,460.28 and 303,639.41 is: 419,022.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,579.89 : 700,460.28 = 303,639.41 : x
  2. Step 2: Convert to fraction form
    507,579.89/700,460.28 = 303,639.41/x
  3. Step 3: Cross multiply
    507,579.89x = 700,460.28 × 303,639.41
  4. Step 4: Simplify right side
    507,579.89x = 212,687,347,898.79
  5. Step 5: Solve for x
    x = 212,687,347,898.79/507,579.89
  6. Step 6: Final answer
    x = 419,022.41

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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.