Home / 486,558.20-728,087.70-329,094.20

Finding the Fourth Proportional to 486,558.20, 728,087.70 and 329,094.20

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Solution

The fourth proportional to 486,558.20, 728,087.70 and 329,094.20 is: 492,457.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,558.20 : 728,087.70 = 329,094.20 : x
  2. Step 2: Convert to fraction form
    486,558.20/728,087.70 = 329,094.20/x
  3. Step 3: Cross multiply
    486,558.20x = 728,087.70 × 329,094.20
  4. Step 4: Simplify right side
    486,558.20x = 239,609,439,161.34
  5. Step 5: Solve for x
    x = 239,609,439,161.34/486,558.20
  6. Step 6: Final answer
    x = 492,457.92

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1.5x scale

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.