Home / 1,376,187.70-2,064,609.60-665,631.40

Finding the Fourth Proportional to 1,376,187.70, 2,064,609.60 and 665,631.40

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Solution

The fourth proportional to 1,376,187.70, 2,064,609.60 and 665,631.40 is: 998,605.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,376,187.70 : 2,064,609.60 = 665,631.40 : x
  2. Step 2: Convert to fraction form
    1,376,187.70/2,064,609.60 = 665,631.40/x
  3. Step 3: Cross multiply
    1,376,187.70x = 2,064,609.60 × 665,631.40
  4. Step 4: Simplify right side
    1,376,187.70x = 1,374,268,978,501.44
  5. Step 5: Solve for x
    x = 1,374,268,978,501.44/1,376,187.70
  6. Step 6: Final answer
    x = 998,605.77

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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.