Home / 1,485,561.60-2,228,342.40-420,609.24

Finding the Fourth Proportional to 1,485,561.60, 2,228,342.40 and 420,609.24

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Solution

The fourth proportional to 1,485,561.60, 2,228,342.40 and 420,609.24 is: 630,913.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,561.60 : 2,228,342.40 = 420,609.24 : x
  2. Step 2: Convert to fraction form
    1,485,561.60/2,228,342.40 = 420,609.24/x
  3. Step 3: Cross multiply
    1,485,561.60x = 2,228,342.40 × 420,609.24
  4. Step 4: Simplify right side
    1,485,561.60x = 937,261,403,323.78
  5. Step 5: Solve for x
    x = 937,261,403,323.78/1,485,561.60
  6. Step 6: Final answer
    x = 630,913.86

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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.