Home / 1,513,520.20-2,266,343.70-978,142.60

Finding the Fourth Proportional to 1,513,520.20, 2,266,343.70 and 978,142.60

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Solution

The fourth proportional to 1,513,520.20, 2,266,343.70 and 978,142.60 is: 1,464,669.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,513,520.20 : 2,266,343.70 = 978,142.60 : x
  2. Step 2: Convert to fraction form
    1,513,520.20/2,266,343.70 = 978,142.60/x
  3. Step 3: Cross multiply
    1,513,520.20x = 2,266,343.70 × 978,142.60
  4. Step 4: Simplify right side
    1,513,520.20x = 2,216,807,319,211.62
  5. Step 5: Solve for x
    x = 2,216,807,319,211.62/1,513,520.20
  6. Step 6: Final answer
    x = 1,464,669.79

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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.