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Finding the Fourth Proportional to 978,167.40, 1,366,635 and 978,167.40

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Solution

The fourth proportional to 978,167.40, 1,366,635 and 978,167.40 is: 1,366,635

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,167.40 : 1,366,635 = 978,167.40 : x
  2. Step 2: Convert to fraction form
    978,167.40/1,366,635 = 978,167.40/x
  3. Step 3: Cross multiply
    978,167.40x = 1,366,635 × 978,167.40
  4. Step 4: Simplify right side
    978,167.40x = 1,336,797,804,699
  5. Step 5: Solve for x
    x = 1,336,797,804,699/978,167.40
  6. Step 6: Final answer
    x = 1,366,635

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These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.