Home / 759,721.21-1,139,161.10-310,757.35

Finding the Fourth Proportional to 759,721.21, 1,139,161.10 and 310,757.35

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Solution

The fourth proportional to 759,721.21, 1,139,161.10 and 310,757.35 is: 465,963.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,721.21 : 1,139,161.10 = 310,757.35 : x
  2. Step 2: Convert to fraction form
    759,721.21/1,139,161.10 = 310,757.35/x
  3. Step 3: Cross multiply
    759,721.21x = 1,139,161.10 × 310,757.35
  4. Step 4: Simplify right side
    759,721.21x = 354,002,684,659.09
  5. Step 5: Solve for x
    x = 354,002,684,659.09/759,721.21
  6. Step 6: Final answer
    x = 465,963.94

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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.