Home / 915,900.22-1,264,093.60-508,133.43

Finding the Fourth Proportional to 915,900.22, 1,264,093.60 and 508,133.43

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Solution

The fourth proportional to 915,900.22, 1,264,093.60 and 508,133.43 is: 701,308.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,900.22 : 1,264,093.60 = 508,133.43 : x
  2. Step 2: Convert to fraction form
    915,900.22/1,264,093.60 = 508,133.43/x
  3. Step 3: Cross multiply
    915,900.22x = 1,264,093.60 × 508,133.43
  4. Step 4: Simplify right side
    915,900.22x = 642,328,216,809.05
  5. Step 5: Solve for x
    x = 642,328,216,809.05/915,900.22
  6. Step 6: Final answer
    x = 701,308.07

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1.5x scale

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.