Home / 915,936.71-1,264,144.02-508,169.85

Finding the Fourth Proportional to 915,936.71, 1,264,144.02 and 508,169.85

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Solution

The fourth proportional to 915,936.71, 1,264,144.02 and 508,169.85 is: 701,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,936.71 : 1,264,144.02 = 508,169.85 : x
  2. Step 2: Convert to fraction form
    915,936.71/1,264,144.02 = 508,169.85/x
  3. Step 3: Cross multiply
    915,936.71x = 1,264,144.02 × 508,169.85
  4. Step 4: Simplify right side
    915,936.71x = 642,399,877,486.43
  5. Step 5: Solve for x
    x = 642,399,877,486.43/915,936.71
  6. Step 6: Final answer
    x = 701,358.37

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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.