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Finding the Fourth Proportional to 630,726.46, 946,214.28 and 231,370.90

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Solution

The fourth proportional to 630,726.46, 946,214.28 and 231,370.90 is: 347,102.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,726.46 : 946,214.28 = 231,370.90 : x
  2. Step 2: Convert to fraction form
    630,726.46/946,214.28 = 231,370.90/x
  3. Step 3: Cross multiply
    630,726.46x = 946,214.28 × 231,370.90
  4. Step 4: Simplify right side
    630,726.46x = 218,926,449,556.45
  5. Step 5: Solve for x
    x = 218,926,449,556.45/630,726.46
  6. Step 6: Final answer
    x = 347,102.05

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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.