Home / 628,421.27-867,231.74-341,942.81

Finding the Fourth Proportional to 628,421.27, 867,231.74 and 341,942.81

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Solution

The fourth proportional to 628,421.27, 867,231.74 and 341,942.81 is: 471,886.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,421.27 : 867,231.74 = 341,942.81 : x
  2. Step 2: Convert to fraction form
    628,421.27/867,231.74 = 341,942.81/x
  3. Step 3: Cross multiply
    628,421.27x = 867,231.74 × 341,942.81
  4. Step 4: Simplify right side
    628,421.27x = 296,543,656,387.08
  5. Step 5: Solve for x
    x = 296,543,656,387.08/628,421.27
  6. Step 6: Final answer
    x = 471,886.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.