Home / 1,059,349.10-1,589,023.65-978,478.70

Finding the Fourth Proportional to 1,059,349.10, 1,589,023.65 and 978,478.70

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Solution

The fourth proportional to 1,059,349.10, 1,589,023.65 and 978,478.70 is: 1,467,718.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,059,349.10 : 1,589,023.65 = 978,478.70 : x
  2. Step 2: Convert to fraction form
    1,059,349.10/1,589,023.65 = 978,478.70/x
  3. Step 3: Cross multiply
    1,059,349.10x = 1,589,023.65 × 978,478.70
  4. Step 4: Simplify right side
    1,059,349.10x = 1,554,825,795,321.26
  5. Step 5: Solve for x
    x = 1,554,825,795,321.26/1,059,349.10
  6. Step 6: Final answer
    x = 1,467,718.05

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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.