Home / 810,546.85-1,215,818.64-761,222.49

Finding the Fourth Proportional to 810,546.85, 1,215,818.64 and 761,222.49

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Solution

The fourth proportional to 810,546.85, 1,215,818.64 and 761,222.49 is: 1,141,832.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,546.85 : 1,215,818.64 = 761,222.49 : x
  2. Step 2: Convert to fraction form
    810,546.85/1,215,818.64 = 761,222.49/x
  3. Step 3: Cross multiply
    810,546.85x = 1,215,818.64 × 761,222.49
  4. Step 4: Simplify right side
    810,546.85x = 925,508,492,529.21
  5. Step 5: Solve for x
    x = 925,508,492,529.21/810,546.85
  6. Step 6: Final answer
    x = 1,141,832.20

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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.