Home / 610,629.60-842,639.04-338,673.40

Finding the Fourth Proportional to 610,629.60, 842,639.04 and 338,673.40

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Solution

The fourth proportional to 610,629.60, 842,639.04 and 338,673.40 is: 467,352.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,629.60 : 842,639.04 = 338,673.40 : x
  2. Step 2: Convert to fraction form
    610,629.60/842,639.04 = 338,673.40/x
  3. Step 3: Cross multiply
    610,629.60x = 842,639.04 × 338,673.40
  4. Step 4: Simplify right side
    610,629.60x = 285,379,428,649.54
  5. Step 5: Solve for x
    x = 285,379,428,649.54/610,629.60
  6. Step 6: Final answer
    x = 467,352.76

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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.