Home / 486,459.20-671,593.75-323,336.81

Finding the Fourth Proportional to 486,459.20, 671,593.75 and 323,336.81

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Solution

The fourth proportional to 486,459.20, 671,593.75 and 323,336.81 is: 446,390.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,459.20 : 671,593.75 = 323,336.81 : x
  2. Step 2: Convert to fraction form
    486,459.20/671,593.75 = 323,336.81/x
  3. Step 3: Cross multiply
    486,459.20x = 671,593.75 × 323,336.81
  4. Step 4: Simplify right side
    486,459.20x = 217,150,981,611.58
  5. Step 5: Solve for x
    x = 217,150,981,611.58/486,459.20
  6. Step 6: Final answer
    x = 446,390.94

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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.