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Finding the Fourth Proportional to 507,980.48, 761,815.16 and 351,216.32

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Solution

The fourth proportional to 507,980.48, 761,815.16 and 351,216.32 is: 526,716.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,980.48 : 761,815.16 = 351,216.32 : x
  2. Step 2: Convert to fraction form
    507,980.48/761,815.16 = 351,216.32/x
  3. Step 3: Cross multiply
    507,980.48x = 761,815.16 × 351,216.32
  4. Step 4: Simplify right side
    507,980.48x = 267,561,917,015.41
  5. Step 5: Solve for x
    x = 267,561,917,015.41/507,980.48
  6. Step 6: Final answer
    x = 526,716.93

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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.