Home / 1,316,291.25-1,974,436.89-319,019.25

Finding the Fourth Proportional to 1,316,291.25, 1,974,436.89 and 319,019.25

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Solution

The fourth proportional to 1,316,291.25, 1,974,436.89 and 319,019.25 is: 478,528.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,291.25 : 1,974,436.89 = 319,019.25 : x
  2. Step 2: Convert to fraction form
    1,316,291.25/1,974,436.89 = 319,019.25/x
  3. Step 3: Cross multiply
    1,316,291.25x = 1,974,436.89 × 319,019.25
  4. Step 4: Simplify right side
    1,316,291.25x = 629,883,375,820.13
  5. Step 5: Solve for x
    x = 629,883,375,820.13/1,316,291.25
  6. Step 6: Final answer
    x = 478,528.88

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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.