Home / 720,161.42-1,080,615.13-321,089.81

Finding the Fourth Proportional to 720,161.42, 1,080,615.13 and 321,089.81

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Solution

The fourth proportional to 720,161.42, 1,080,615.13 and 321,089.81 is: 481,801.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,161.42 : 1,080,615.13 = 321,089.81 : x
  2. Step 2: Convert to fraction form
    720,161.42/1,080,615.13 = 321,089.81/x
  3. Step 3: Cross multiply
    720,161.42x = 1,080,615.13 × 321,089.81
  4. Step 4: Simplify right side
    720,161.42x = 346,974,500,569.03
  5. Step 5: Solve for x
    x = 346,974,500,569.03/720,161.42
  6. Step 6: Final answer
    x = 481,801.01

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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.