Home / 1,500,087.82-2,070,126.65-811,759.60

Finding the Fourth Proportional to 1,500,087.82, 2,070,126.65 and 811,759.60

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Solution

The fourth proportional to 1,500,087.82, 2,070,126.65 and 811,759.60 is: 1,120,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,500,087.82 : 2,070,126.65 = 811,759.60 : x
  2. Step 2: Convert to fraction form
    1,500,087.82/2,070,126.65 = 811,759.60/x
  3. Step 3: Cross multiply
    1,500,087.82x = 2,070,126.65 × 811,759.60
  4. Step 4: Simplify right side
    1,500,087.82x = 1,680,445,181,353.34
  5. Step 5: Solve for x
    x = 1,680,445,181,353.34/1,500,087.82
  6. Step 6: Final answer
    x = 1,120,231.20

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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.