Home / 1,316,287.75-1,974,431.63-319,015.75

Finding the Fourth Proportional to 1,316,287.75, 1,974,431.63 and 319,015.75

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Solution

The fourth proportional to 1,316,287.75, 1,974,431.63 and 319,015.75 is: 478,523.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,287.75 : 1,974,431.63 = 319,015.75 : x
  2. Step 2: Convert to fraction form
    1,316,287.75/1,974,431.63 = 319,015.75/x
  3. Step 3: Cross multiply
    1,316,287.75x = 1,974,431.63 × 319,015.75
  4. Step 4: Simplify right side
    1,316,287.75x = 629,874,787,268.17
  5. Step 5: Solve for x
    x = 629,874,787,268.17/1,316,287.75
  6. Step 6: Final answer
    x = 478,523.63

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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.