Home / 460,860.80-691,291.20-128,436.80

Finding the Fourth Proportional to 460,860.80, 691,291.20 and 128,436.80

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Solution

The fourth proportional to 460,860.80, 691,291.20 and 128,436.80 is: 192,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    460,860.80 : 691,291.20 = 128,436.80 : x
  2. Step 2: Convert to fraction form
    460,860.80/691,291.20 = 128,436.80/x
  3. Step 3: Cross multiply
    460,860.80x = 691,291.20 × 128,436.80
  4. Step 4: Simplify right side
    460,860.80x = 88,787,229,596.16
  5. Step 5: Solve for x
    x = 88,787,229,596.16/460,860.80
  6. Step 6: Final answer
    x = 192,655.20

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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.