Home / 1,130,407.10-1,695,610.65-978,191.90

Finding the Fourth Proportional to 1,130,407.10, 1,695,610.65 and 978,191.90

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Solution

The fourth proportional to 1,130,407.10, 1,695,610.65 and 978,191.90 is: 1,467,287.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,130,407.10 : 1,695,610.65 = 978,191.90 : x
  2. Step 2: Convert to fraction form
    1,130,407.10/1,695,610.65 = 978,191.90/x
  3. Step 3: Cross multiply
    1,130,407.10x = 1,695,610.65 × 978,191.90
  4. Step 4: Simplify right side
    1,130,407.10x = 1,658,632,603,383.74
  5. Step 5: Solve for x
    x = 1,658,632,603,383.74/1,130,407.10
  6. Step 6: Final answer
    x = 1,467,287.85

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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.