Home / 718,327.94-1,077,497.31-318,861.32

Finding the Fourth Proportional to 718,327.94, 1,077,497.31 and 318,861.32

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Solution

The fourth proportional to 718,327.94, 1,077,497.31 and 318,861.32 is: 478,294.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,327.94 : 1,077,497.31 = 318,861.32 : x
  2. Step 2: Convert to fraction form
    718,327.94/1,077,497.31 = 318,861.32/x
  3. Step 3: Cross multiply
    718,327.94x = 1,077,497.31 × 318,861.32
  4. Step 4: Simplify right side
    718,327.94x = 343,572,214,563.05
  5. Step 5: Solve for x
    x = 343,572,214,563.05/718,327.94
  6. Step 6: Final answer
    x = 478,294.38

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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.