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Finding the Fourth Proportional to 454,430.40, 627,040.20 and 263,406.48

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Solution

The fourth proportional to 454,430.40, 627,040.20 and 263,406.48 is: 363,458.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,430.40 : 627,040.20 = 263,406.48 : x
  2. Step 2: Convert to fraction form
    454,430.40/627,040.20 = 263,406.48/x
  3. Step 3: Cross multiply
    454,430.40x = 627,040.20 × 263,406.48
  4. Step 4: Simplify right side
    454,430.40x = 165,166,451,900.50
  5. Step 5: Solve for x
    x = 165,166,451,900.50/454,430.40
  6. Step 6: Final answer
    x = 363,458.19

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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.