Home / 1,521,720.72-2,099,613.96-901,212.66

Finding the Fourth Proportional to 1,521,720.72, 2,099,613.96 and 901,212.66

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Solution

The fourth proportional to 1,521,720.72, 2,099,613.96 and 901,212.66 is: 1,243,459.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,521,720.72 : 2,099,613.96 = 901,212.66 : x
  2. Step 2: Convert to fraction form
    1,521,720.72/2,099,613.96 = 901,212.66/x
  3. Step 3: Cross multiply
    1,521,720.72x = 2,099,613.96 × 901,212.66
  4. Step 4: Simplify right side
    1,521,720.72x = 1,892,198,681,864.73
  5. Step 5: Solve for x
    x = 1,892,198,681,864.73/1,521,720.72
  6. Step 6: Final answer
    x = 1,243,459.89

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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.