Home / 759,722.47-1,139,162.96-310,758.59

Finding the Fourth Proportional to 759,722.47, 1,139,162.96 and 310,758.59

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Solution

The fourth proportional to 759,722.47, 1,139,162.96 and 310,758.59 is: 465,965.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,722.47 : 1,139,162.96 = 310,758.59 : x
  2. Step 2: Convert to fraction form
    759,722.47/1,139,162.96 = 310,758.59/x
  3. Step 3: Cross multiply
    759,722.47x = 1,139,162.96 × 310,758.59
  4. Step 4: Simplify right side
    759,722.47x = 354,004,678,854.63
  5. Step 5: Solve for x
    x = 354,004,678,854.63/759,722.47
  6. Step 6: Final answer
    x = 465,965.79

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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.