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Finding the Fourth Proportional to 552,630.80, 828,946.20 and 412,662.80

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Solution

The fourth proportional to 552,630.80, 828,946.20 and 412,662.80 is: 618,994.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,630.80 : 828,946.20 = 412,662.80 : x
  2. Step 2: Convert to fraction form
    552,630.80/828,946.20 = 412,662.80/x
  3. Step 3: Cross multiply
    552,630.80x = 828,946.20 × 412,662.80
  4. Step 4: Simplify right side
    552,630.80x = 342,075,259,941.36
  5. Step 5: Solve for x
    x = 342,075,259,941.36/552,630.80
  6. Step 6: Final answer
    x = 618,994.20

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Similar ratio
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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.