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Finding the Fourth Proportional to 622,626.40, 934,231.20 and 323,444.80

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Solution

The fourth proportional to 622,626.40, 934,231.20 and 323,444.80 is: 485,318.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,626.40 : 934,231.20 = 323,444.80 : x
  2. Step 2: Convert to fraction form
    622,626.40/934,231.20 = 323,444.80/x
  3. Step 3: Cross multiply
    622,626.40x = 934,231.20 × 323,444.80
  4. Step 4: Simplify right side
    622,626.40x = 302,172,223,637.76
  5. Step 5: Solve for x
    x = 302,172,223,637.76/622,626.40
  6. Step 6: Final answer
    x = 485,318.68

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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.