Home / 1,587,431.96-2,190,654.44-862,280.25

Finding the Fourth Proportional to 1,587,431.96, 2,190,654.44 and 862,280.25

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Solution

The fourth proportional to 1,587,431.96, 2,190,654.44 and 862,280.25 is: 1,189,945.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,587,431.96 : 2,190,654.44 = 862,280.25 : x
  2. Step 2: Convert to fraction form
    1,587,431.96/2,190,654.44 = 862,280.25/x
  3. Step 3: Cross multiply
    1,587,431.96x = 2,190,654.44 × 862,280.25
  4. Step 4: Simplify right side
    1,587,431.96x = 1,888,958,058,186.81
  5. Step 5: Solve for x
    x = 1,888,958,058,186.81/1,587,431.96
  6. Step 6: Final answer
    x = 1,189,945.84

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Double scale
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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.