Home / 1,077,813.60-1,616,720.40-978,086.40

Finding the Fourth Proportional to 1,077,813.60, 1,616,720.40 and 978,086.40

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Solution

The fourth proportional to 1,077,813.60, 1,616,720.40 and 978,086.40 is: 1,467,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,813.60 : 1,616,720.40 = 978,086.40 : x
  2. Step 2: Convert to fraction form
    1,077,813.60/1,616,720.40 = 978,086.40/x
  3. Step 3: Cross multiply
    1,077,813.60x = 1,616,720.40 × 978,086.40
  4. Step 4: Simplify right side
    1,077,813.60x = 1,581,292,235,842.56
  5. Step 5: Solve for x
    x = 1,581,292,235,842.56/1,077,813.60
  6. Step 6: Final answer
    x = 1,467,129.60

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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.