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Finding the Fourth Proportional to 450,990.61, 622,377.10 and 257,394.44

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Solution

The fourth proportional to 450,990.61, 622,377.10 and 257,394.44 is: 355,210.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,990.61 : 622,377.10 = 257,394.44 : x
  2. Step 2: Convert to fraction form
    450,990.61/622,377.10 = 257,394.44/x
  3. Step 3: Cross multiply
    450,990.61x = 622,377.10 × 257,394.44
  4. Step 4: Simplify right side
    450,990.61x = 160,196,401,367.95
  5. Step 5: Solve for x
    x = 160,196,401,367.95/450,990.61
  6. Step 6: Final answer
    x = 355,210.06

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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.