Home / 1,239,936.54-1,710,672.21-810,464.46

Finding the Fourth Proportional to 1,239,936.54, 1,710,672.21 and 810,464.46

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Solution

The fourth proportional to 1,239,936.54, 1,710,672.21 and 810,464.46 is: 1,118,153.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,239,936.54 : 1,710,672.21 = 810,464.46 : x
  2. Step 2: Convert to fraction form
    1,239,936.54/1,710,672.21 = 810,464.46/x
  3. Step 3: Cross multiply
    1,239,936.54x = 1,710,672.21 × 810,464.46
  4. Step 4: Simplify right side
    1,239,936.54x = 1,386,439,028,914.66
  5. Step 5: Solve for x
    x = 1,386,439,028,914.66/1,239,936.54
  6. Step 6: Final answer
    x = 1,118,153.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.