Home / 1,288,186.20-1,932,279.30-1,130,722.20

Finding the Fourth Proportional to 1,288,186.20, 1,932,279.30 and 1,130,722.20

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Solution

The fourth proportional to 1,288,186.20, 1,932,279.30 and 1,130,722.20 is: 1,696,083.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,186.20 : 1,932,279.30 = 1,130,722.20 : x
  2. Step 2: Convert to fraction form
    1,288,186.20/1,932,279.30 = 1,130,722.20/x
  3. Step 3: Cross multiply
    1,288,186.20x = 1,932,279.30 × 1,130,722.20
  4. Step 4: Simplify right side
    1,288,186.20x = 2,184,871,101,110.46
  5. Step 5: Solve for x
    x = 2,184,871,101,110.46/1,288,186.20
  6. Step 6: Final answer
    x = 1,696,083.30

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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.