Home / 915,787.85-1,263,864.85-508,021.06

Finding the Fourth Proportional to 915,787.85, 1,263,864.85 and 508,021.06

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Solution

The fourth proportional to 915,787.85, 1,263,864.85 and 508,021.06 is: 701,112.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,787.85 : 1,263,864.85 = 508,021.06 : x
  2. Step 2: Convert to fraction form
    915,787.85/1,263,864.85 = 508,021.06/x
  3. Step 3: Cross multiply
    915,787.85x = 1,263,864.85 × 508,021.06
  4. Step 4: Simplify right side
    915,787.85x = 642,069,960,793.74
  5. Step 5: Solve for x
    x = 642,069,960,793.74/915,787.85
  6. Step 6: Final answer
    x = 701,112.12

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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.