Home / 1,485,199.60-2,227,580.70-420,349.30

Finding the Fourth Proportional to 1,485,199.60, 2,227,580.70 and 420,349.30

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Solution

The fourth proportional to 1,485,199.60, 2,227,580.70 and 420,349.30 is: 630,462.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,485,199.60 : 2,227,580.70 = 420,349.30 : x
  2. Step 2: Convert to fraction form
    1,485,199.60/2,227,580.70 = 420,349.30/x
  3. Step 3: Cross multiply
    1,485,199.60x = 2,227,580.70 × 420,349.30
  4. Step 4: Simplify right side
    1,485,199.60x = 936,361,987,938.51
  5. Step 5: Solve for x
    x = 936,361,987,938.51/1,485,199.60
  6. Step 6: Final answer
    x = 630,462.05

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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.