Home / 421,763.38-582,033.40-230,776.72

Finding the Fourth Proportional to 421,763.38, 582,033.40 and 230,776.72

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Solution

The fourth proportional to 421,763.38, 582,033.40 and 230,776.72 is: 318,471.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,763.38 : 582,033.40 = 230,776.72 : x
  2. Step 2: Convert to fraction form
    421,763.38/582,033.40 = 230,776.72/x
  3. Step 3: Cross multiply
    421,763.38x = 582,033.40 × 230,776.72
  4. Step 4: Simplify right side
    421,763.38x = 134,319,756,950.42
  5. Step 5: Solve for x
    x = 134,319,756,950.42/421,763.38
  6. Step 6: Final answer
    x = 318,471.84

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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.