Home / 718,328.38-1,077,497.96-318,861.76

Finding the Fourth Proportional to 718,328.38, 1,077,497.96 and 318,861.76

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Solution

The fourth proportional to 718,328.38, 1,077,497.96 and 318,861.76 is: 478,295.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,328.38 : 1,077,497.96 = 318,861.76 : x
  2. Step 2: Convert to fraction form
    718,328.38/1,077,497.96 = 318,861.76/x
  3. Step 3: Cross multiply
    718,328.38x = 1,077,497.96 × 318,861.76
  4. Step 4: Simplify right side
    718,328.38x = 343,572,895,922.01
  5. Step 5: Solve for x
    x = 343,572,895,922.01/718,328.38
  6. Step 6: Final answer
    x = 478,295.03

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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.