Home / 498,312.27-687,431.76-326,154.44

Finding the Fourth Proportional to 498,312.27, 687,431.76 and 326,154.44

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Solution

The fourth proportional to 498,312.27, 687,431.76 and 326,154.44 is: 449,936.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,312.27 : 687,431.76 = 326,154.44 : x
  2. Step 2: Convert to fraction form
    498,312.27/687,431.76 = 326,154.44/x
  3. Step 3: Cross multiply
    498,312.27x = 687,431.76 × 326,154.44
  4. Step 4: Simplify right side
    498,312.27x = 224,208,922,439.59
  5. Step 5: Solve for x
    x = 224,208,922,439.59/498,312.27
  6. Step 6: Final answer
    x = 449,936.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.