Home / 915,192.43-1,371,820.74-338,445.10

Finding the Fourth Proportional to 915,192.43, 1,371,820.74 and 338,445.10

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Solution

The fourth proportional to 915,192.43, 1,371,820.74 and 338,445.10 is: 507,309.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,192.43 : 1,371,820.74 = 338,445.10 : x
  2. Step 2: Convert to fraction form
    915,192.43/1,371,820.74 = 338,445.10/x
  3. Step 3: Cross multiply
    915,192.43x = 1,371,820.74 × 338,445.10
  4. Step 4: Simplify right side
    915,192.43x = 464,286,007,531.37
  5. Step 5: Solve for x
    x = 464,286,007,531.37/915,192.43
  6. Step 6: Final answer
    x = 507,309.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.