Home / 1,130,406.10-1,695,609.15-978,190.90

Finding the Fourth Proportional to 1,130,406.10, 1,695,609.15 and 978,190.90

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Solution

The fourth proportional to 1,130,406.10, 1,695,609.15 and 978,190.90 is: 1,467,286.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,406.10 : 1,695,609.15 = 978,190.90 : x
  2. Step 2: Convert to fraction form
    1,130,406.10/1,695,609.15 = 978,190.90/x
  3. Step 3: Cross multiply
    1,130,406.10x = 1,695,609.15 × 978,190.90
  4. Step 4: Simplify right side
    1,130,406.10x = 1,658,629,440,486.74
  5. Step 5: Solve for x
    x = 1,658,629,440,486.74/1,130,406.10
  6. Step 6: Final answer
    x = 1,467,286.35

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Similar ratio
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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.