Home / 1,120,014.60-1,680,021.90-614,380.20

Finding the Fourth Proportional to 1,120,014.60, 1,680,021.90 and 614,380.20

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Solution

The fourth proportional to 1,120,014.60, 1,680,021.90 and 614,380.20 is: 921,570.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,014.60 : 1,680,021.90 = 614,380.20 : x
  2. Step 2: Convert to fraction form
    1,120,014.60/1,680,021.90 = 614,380.20/x
  3. Step 3: Cross multiply
    1,120,014.60x = 1,680,021.90 × 614,380.20
  4. Step 4: Simplify right side
    1,120,014.60x = 1,032,172,190,926.38
  5. Step 5: Solve for x
    x = 1,032,172,190,926.38/1,120,014.60
  6. Step 6: Final answer
    x = 921,570.30

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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.