Home / 759,868.08-1,139,742.96-310,469.28

Finding the Fourth Proportional to 759,868.08, 1,139,742.96 and 310,469.28

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Solution

The fourth proportional to 759,868.08, 1,139,742.96 and 310,469.28 is: 465,679.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,868.08 : 1,139,742.96 = 310,469.28 : x
  2. Step 2: Convert to fraction form
    759,868.08/1,139,742.96 = 310,469.28/x
  3. Step 3: Cross multiply
    759,868.08x = 1,139,742.96 × 310,469.28
  4. Step 4: Simplify right side
    759,868.08x = 353,855,176,176.27
  5. Step 5: Solve for x
    x = 353,855,176,176.27/759,868.08
  6. Step 6: Final answer
    x = 465,679.75

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1.5x scale

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.