Home / 915,787.35-1,263,864.16-508,020.56

Finding the Fourth Proportional to 915,787.35, 1,263,864.16 and 508,020.56

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Solution

The fourth proportional to 915,787.35, 1,263,864.16 and 508,020.56 is: 701,111.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,787.35 : 1,263,864.16 = 508,020.56 : x
  2. Step 2: Convert to fraction form
    915,787.35/1,263,864.16 = 508,020.56/x
  3. Step 3: Cross multiply
    915,787.35x = 1,263,864.16 × 508,020.56
  4. Step 4: Simplify right side
    915,787.35x = 642,068,977,382.33
  5. Step 5: Solve for x
    x = 642,068,977,382.33/915,787.35
  6. Step 6: Final answer
    x = 701,111.43

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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.