Home / 460,979.60-691,468.20-128,555.60

Finding the Fourth Proportional to 460,979.60, 691,468.20 and 128,555.60

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Solution

The fourth proportional to 460,979.60, 691,468.20 and 128,555.60 is: 192,833.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,979.60 : 691,468.20 = 128,555.60 : x
  2. Step 2: Convert to fraction form
    460,979.60/691,468.20 = 128,555.60/x
  3. Step 3: Cross multiply
    460,979.60x = 691,468.20 × 128,555.60
  4. Step 4: Simplify right side
    460,979.60x = 88,892,109,331.92
  5. Step 5: Solve for x
    x = 88,892,109,331.92/460,979.60
  6. Step 6: Final answer
    x = 192,833.07

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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.