Home / 810,544.35-1,215,814.89-761,219.98

Finding the Fourth Proportional to 810,544.35, 1,215,814.89 and 761,219.98

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Solution

The fourth proportional to 810,544.35, 1,215,814.89 and 761,219.98 is: 1,141,828.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,544.35 : 1,215,814.89 = 761,219.98 : x
  2. Step 2: Convert to fraction form
    810,544.35/1,215,814.89 = 761,219.98/x
  3. Step 3: Cross multiply
    810,544.35x = 1,215,814.89 × 761,219.98
  4. Step 4: Simplify right side
    810,544.35x = 925,502,579,641.75
  5. Step 5: Solve for x
    x = 925,502,579,641.75/810,544.35
  6. Step 6: Final answer
    x = 1,141,828.43

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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.