Home / 759,706.55-1,139,139.13-310,742.68

Finding the Fourth Proportional to 759,706.55, 1,139,139.13 and 310,742.68

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Solution

The fourth proportional to 759,706.55, 1,139,139.13 and 310,742.68 is: 465,941.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,706.55 : 1,139,139.13 = 310,742.68 : x
  2. Step 2: Convert to fraction form
    759,706.55/1,139,139.13 = 310,742.68/x
  3. Step 3: Cross multiply
    759,706.55x = 1,139,139.13 × 310,742.68
  4. Step 4: Simplify right side
    759,706.55x = 353,979,146,149.07
  5. Step 5: Solve for x
    x = 353,979,146,149.07/759,706.55
  6. Step 6: Final answer
    x = 465,941.94

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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.