Home / 2,405,535.15-3,319,638.32-1,438,665.42

Finding the Fourth Proportional to 2,405,535.15, 3,319,638.32 and 1,438,665.42

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Solution

The fourth proportional to 2,405,535.15, 3,319,638.32 and 1,438,665.42 is: 1,985,358.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,405,535.15 : 3,319,638.32 = 1,438,665.42 : x
  2. Step 2: Convert to fraction form
    2,405,535.15/3,319,638.32 = 1,438,665.42/x
  3. Step 3: Cross multiply
    2,405,535.15x = 3,319,638.32 × 1,438,665.42
  4. Step 4: Simplify right side
    2,405,535.15x = 4,775,848,842,398.47
  5. Step 5: Solve for x
    x = 4,775,848,842,398.47/2,405,535.15
  6. Step 6: Final answer
    x = 1,985,358.16

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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.