Home / 1,279,102.20-1,916,485.40-772,599.04

Finding the Fourth Proportional to 1,279,102.20, 1,916,485.40 and 772,599.04

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Solution

The fourth proportional to 1,279,102.20, 1,916,485.40 and 772,599.04 is: 1,157,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,102.20 : 1,916,485.40 = 772,599.04 : x
  2. Step 2: Convert to fraction form
    1,279,102.20/1,916,485.40 = 772,599.04/x
  3. Step 3: Cross multiply
    1,279,102.20x = 1,916,485.40 × 772,599.04
  4. Step 4: Simplify right side
    1,279,102.20x = 1,480,674,780,214.02
  5. Step 5: Solve for x
    x = 1,480,674,780,214.02/1,279,102.20
  6. Step 6: Final answer
    x = 1,157,589.11

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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.