Home / 917,943.49-1,376,914.96-286,857.37

Finding the Fourth Proportional to 917,943.49, 1,376,914.96 and 286,857.37

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Solution

The fourth proportional to 917,943.49, 1,376,914.96 and 286,857.37 is: 430,285.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,943.49 : 1,376,914.96 = 286,857.37 : x
  2. Step 2: Convert to fraction form
    917,943.49/1,376,914.96 = 286,857.37/x
  3. Step 3: Cross multiply
    917,943.49x = 1,376,914.96 × 286,857.37
  4. Step 4: Simplify right side
    917,943.49x = 394,978,204,139.26
  5. Step 5: Solve for x
    x = 394,978,204,139.26/917,943.49
  6. Step 6: Final answer
    x = 430,285.97

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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.