Home / 454,931.20-682,542.60-305,340.40

Finding the Fourth Proportional to 454,931.20, 682,542.60 and 305,340.40

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Solution

The fourth proportional to 454,931.20, 682,542.60 and 305,340.40 is: 458,108.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,931.20 : 682,542.60 = 305,340.40 : x
  2. Step 2: Convert to fraction form
    454,931.20/682,542.60 = 305,340.40/x
  3. Step 3: Cross multiply
    454,931.20x = 682,542.60 × 305,340.40
  4. Step 4: Simplify right side
    454,931.20x = 208,407,830,501.04
  5. Step 5: Solve for x
    x = 208,407,830,501.04/454,931.20
  6. Step 6: Final answer
    x = 458,108.46

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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.