Home / 915,916.30-1,264,025.73-508,147.72

Finding the Fourth Proportional to 915,916.30, 1,264,025.73 and 508,147.72

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Solution

The fourth proportional to 915,916.30, 1,264,025.73 and 508,147.72 is: 701,277.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,916.30 : 1,264,025.73 = 508,147.72 : x
  2. Step 2: Convert to fraction form
    915,916.30/1,264,025.73 = 508,147.72/x
  3. Step 3: Cross multiply
    915,916.30x = 1,264,025.73 × 508,147.72
  4. Step 4: Simplify right side
    915,916.30x = 642,311,792,720.84
  5. Step 5: Solve for x
    x = 642,311,792,720.84/915,916.30
  6. Step 6: Final answer
    x = 701,277.83

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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.