Home / 1,380,801.80-2,071,202.70-434,462.60

Finding the Fourth Proportional to 1,380,801.80, 2,071,202.70 and 434,462.60

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Solution

The fourth proportional to 1,380,801.80, 2,071,202.70 and 434,462.60 is: 651,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,380,801.80 : 2,071,202.70 = 434,462.60 : x
  2. Step 2: Convert to fraction form
    1,380,801.80/2,071,202.70 = 434,462.60/x
  3. Step 3: Cross multiply
    1,380,801.80x = 2,071,202.70 × 434,462.60
  4. Step 4: Simplify right side
    1,380,801.80x = 899,860,110,169.02
  5. Step 5: Solve for x
    x = 899,860,110,169.02/1,380,801.80
  6. Step 6: Final answer
    x = 651,693.90

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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.