Home / 925,561.80-1,388,516.51-420,158.25

Finding the Fourth Proportional to 925,561.80, 1,388,516.51 and 420,158.25

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Solution

The fourth proportional to 925,561.80, 1,388,516.51 and 420,158.25 is: 630,316.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,561.80 : 1,388,516.51 = 420,158.25 : x
  2. Step 2: Convert to fraction form
    925,561.80/1,388,516.51 = 420,158.25/x
  3. Step 3: Cross multiply
    925,561.80x = 1,388,516.51 × 420,158.25
  4. Step 4: Simplify right side
    925,561.80x = 583,396,664,836.92
  5. Step 5: Solve for x
    x = 583,396,664,836.92/925,561.80
  6. Step 6: Final answer
    x = 630,316.27

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Double scale
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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.