Home / 718,330.39-1,077,500.97-318,863.77

Finding the Fourth Proportional to 718,330.39, 1,077,500.97 and 318,863.77

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Solution

The fourth proportional to 718,330.39, 1,077,500.97 and 318,863.77 is: 478,298.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,330.39 : 1,077,500.97 = 318,863.77 : x
  2. Step 2: Convert to fraction form
    718,330.39/1,077,500.97 = 318,863.77/x
  3. Step 3: Cross multiply
    718,330.39x = 1,077,500.97 × 318,863.77
  4. Step 4: Simplify right side
    718,330.39x = 343,576,021,472.86
  5. Step 5: Solve for x
    x = 343,576,021,472.86/718,330.39
  6. Step 6: Final answer
    x = 478,298.05

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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.