Home / 1,316,268.38-1,974,402.57-318,996.38

Finding the Fourth Proportional to 1,316,268.38, 1,974,402.57 and 318,996.38

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Solution

The fourth proportional to 1,316,268.38, 1,974,402.57 and 318,996.38 is: 478,494.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,268.38 : 1,974,402.57 = 318,996.38 : x
  2. Step 2: Convert to fraction form
    1,316,268.38/1,974,402.57 = 318,996.38/x
  3. Step 3: Cross multiply
    1,316,268.38x = 1,974,402.57 × 318,996.38
  4. Step 4: Simplify right side
    1,316,268.38x = 629,827,262,620.68
  5. Step 5: Solve for x
    x = 629,827,262,620.68/1,316,268.38
  6. Step 6: Final answer
    x = 478,494.56

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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.