Home / 460,977.60-691,465.20-128,553.60

Finding the Fourth Proportional to 460,977.60, 691,465.20 and 128,553.60

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Solution

The fourth proportional to 460,977.60, 691,465.20 and 128,553.60 is: 192,830.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,977.60 : 691,465.20 = 128,553.60 : x
  2. Step 2: Convert to fraction form
    460,977.60/691,465.20 = 128,553.60/x
  3. Step 3: Cross multiply
    460,977.60x = 691,465.20 × 128,553.60
  4. Step 4: Simplify right side
    460,977.60x = 88,890,340,734.72
  5. Step 5: Solve for x
    x = 88,890,340,734.72/460,977.60
  6. Step 6: Final answer
    x = 192,830.07

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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.