Home / 810,178.20-1,215,267.30-798,368.40

Finding the Fourth Proportional to 810,178.20, 1,215,267.30 and 798,368.40

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Solution

The fourth proportional to 810,178.20, 1,215,267.30 and 798,368.40 is: 1,197,552.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,178.20 : 1,215,267.30 = 798,368.40 : x
  2. Step 2: Convert to fraction form
    810,178.20/1,215,267.30 = 798,368.40/x
  3. Step 3: Cross multiply
    810,178.20x = 1,215,267.30 × 798,368.40
  4. Step 4: Simplify right side
    810,178.20x = 970,231,009,873.32
  5. Step 5: Solve for x
    x = 970,231,009,873.32/810,178.20
  6. Step 6: Final answer
    x = 1,197,552.60

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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.