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Finding the Fourth Proportional to 507,361.08, 760,889.74 and 318,109.04

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Solution

The fourth proportional to 507,361.08, 760,889.74 and 318,109.04 is: 477,068.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,361.08 : 760,889.74 = 318,109.04 : x
  2. Step 2: Convert to fraction form
    507,361.08/760,889.74 = 318,109.04/x
  3. Step 3: Cross multiply
    507,361.08x = 760,889.74 × 318,109.04
  4. Step 4: Simplify right side
    507,361.08x = 242,045,904,737.25
  5. Step 5: Solve for x
    x = 242,045,904,737.25/507,361.08
  6. Step 6: Final answer
    x = 477,068.33

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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.