Home / 915,916.80-1,264,026.42-508,148.22

Finding the Fourth Proportional to 915,916.80, 1,264,026.42 and 508,148.22

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Solution

The fourth proportional to 915,916.80, 1,264,026.42 and 508,148.22 is: 701,278.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,916.80 : 1,264,026.42 = 508,148.22 : x
  2. Step 2: Convert to fraction form
    915,916.80/1,264,026.42 = 508,148.22/x
  3. Step 3: Cross multiply
    915,916.80x = 1,264,026.42 × 508,148.22
  4. Step 4: Simplify right side
    915,916.80x = 642,312,775,355.97
  5. Step 5: Solve for x
    x = 642,312,775,355.97/915,916.80
  6. Step 6: Final answer
    x = 701,278.52

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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.