Home / 808,643.05-1,213,109.81-276,039.49

Finding the Fourth Proportional to 808,643.05, 1,213,109.81 and 276,039.49

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Solution

The fourth proportional to 808,643.05, 1,213,109.81 and 276,039.49 is: 414,108.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,643.05 : 1,213,109.81 = 276,039.49 : x
  2. Step 2: Convert to fraction form
    808,643.05/1,213,109.81 = 276,039.49/x
  3. Step 3: Cross multiply
    808,643.05x = 1,213,109.81 × 276,039.49
  4. Step 4: Simplify right side
    808,643.05x = 334,866,213,266.40
  5. Step 5: Solve for x
    x = 334,866,213,266.40/808,643.05
  6. Step 6: Final answer
    x = 414,108.81

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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.