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Finding the Fourth Proportional to 612,791.10, 920,170.80 and 463,200.30

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Solution

The fourth proportional to 612,791.10, 920,170.80 and 463,200.30 is: 695,544.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,791.10 : 920,170.80 = 463,200.30 : x
  2. Step 2: Convert to fraction form
    612,791.10/920,170.80 = 463,200.30/x
  3. Step 3: Cross multiply
    612,791.10x = 920,170.80 × 463,200.30
  4. Step 4: Simplify right side
    612,791.10x = 426,223,390,611.24
  5. Step 5: Solve for x
    x = 426,223,390,611.24/612,791.10
  6. Step 6: Final answer
    x = 695,544.36

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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.