Home / 1,121,014.10-1,681,521.15-722,105.30

Finding the Fourth Proportional to 1,121,014.10, 1,681,521.15 and 722,105.30

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Solution

The fourth proportional to 1,121,014.10, 1,681,521.15 and 722,105.30 is: 1,083,157.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,014.10 : 1,681,521.15 = 722,105.30 : x
  2. Step 2: Convert to fraction form
    1,121,014.10/1,681,521.15 = 722,105.30/x
  3. Step 3: Cross multiply
    1,121,014.10x = 1,681,521.15 × 722,105.30
  4. Step 4: Simplify right side
    1,121,014.10x = 1,214,235,334,477.10
  5. Step 5: Solve for x
    x = 1,214,235,334,477.10/1,121,014.10
  6. Step 6: Final answer
    x = 1,083,157.95

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Double scale
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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.