Home / 705,828.46-974,040.70-399,963.06

Finding the Fourth Proportional to 705,828.46, 974,040.70 and 399,963.06

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Solution

The fourth proportional to 705,828.46, 974,040.70 and 399,963.06 is: 551,947.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    705,828.46 : 974,040.70 = 399,963.06 : x
  2. Step 2: Convert to fraction form
    705,828.46/974,040.70 = 399,963.06/x
  3. Step 3: Cross multiply
    705,828.46x = 974,040.70 × 399,963.06
  4. Step 4: Simplify right side
    705,828.46x = 389,580,298,936.54
  5. Step 5: Solve for x
    x = 389,580,298,936.54/705,828.46
  6. Step 6: Final answer
    x = 551,947.56

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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.