Home / 1,500,767.18-2,071,044.55-812,421.42

Finding the Fourth Proportional to 1,500,767.18, 2,071,044.55 and 812,421.42

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Solution

The fourth proportional to 1,500,767.18, 2,071,044.55 and 812,421.42 is: 1,121,133.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,767.18 : 2,071,044.55 = 812,421.42 : x
  2. Step 2: Convert to fraction form
    1,500,767.18/2,071,044.55 = 812,421.42/x
  3. Step 3: Cross multiply
    1,500,767.18x = 2,071,044.55 × 812,421.42
  4. Step 4: Simplify right side
    1,500,767.18x = 1,682,560,954,194.26
  5. Step 5: Solve for x
    x = 1,682,560,954,194.26/1,500,767.18
  6. Step 6: Final answer
    x = 1,121,133.90

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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.