Home / 672,121.20-1,008,181.80-614,060.40

Finding the Fourth Proportional to 672,121.20, 1,008,181.80 and 614,060.40

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Solution

The fourth proportional to 672,121.20, 1,008,181.80 and 614,060.40 is: 921,090.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,121.20 : 1,008,181.80 = 614,060.40 : x
  2. Step 2: Convert to fraction form
    672,121.20/1,008,181.80 = 614,060.40/x
  3. Step 3: Cross multiply
    672,121.20x = 1,008,181.80 × 614,060.40
  4. Step 4: Simplify right side
    672,121.20x = 619,084,519,380.72
  5. Step 5: Solve for x
    x = 619,084,519,380.72/672,121.20
  6. Step 6: Final answer
    x = 921,090.60

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Double scale
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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.