Home / 2,630,445.78-3,630,015.12-1,423,221.78

Finding the Fourth Proportional to 2,630,445.78, 3,630,015.12 and 1,423,221.78

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Solution

The fourth proportional to 2,630,445.78, 3,630,015.12 and 1,423,221.78 is: 1,964,046.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,630,445.78 : 3,630,015.12 = 1,423,221.78 : x
  2. Step 2: Convert to fraction form
    2,630,445.78/3,630,015.12 = 1,423,221.78/x
  3. Step 3: Cross multiply
    2,630,445.78x = 3,630,015.12 × 1,423,221.78
  4. Step 4: Simplify right side
    2,630,445.78x = 5,166,316,580,513.31
  5. Step 5: Solve for x
    x = 5,166,316,580,513.31/2,630,445.78
  6. Step 6: Final answer
    x = 1,964,046.03

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.