Home / 1,316,312.82-1,974,469.26-319,040.82

Finding the Fourth Proportional to 1,316,312.82, 1,974,469.26 and 319,040.82

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Solution

The fourth proportional to 1,316,312.82, 1,974,469.26 and 319,040.82 is: 478,561.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,312.82 : 1,974,469.26 = 319,040.82 : x
  2. Step 2: Convert to fraction form
    1,316,312.82/1,974,469.26 = 319,040.82/x
  3. Step 3: Cross multiply
    1,316,312.82x = 1,974,469.26 × 319,040.82
  4. Step 4: Simplify right side
    1,316,312.82x = 629,936,291,775.19
  5. Step 5: Solve for x
    x = 629,936,291,775.19/1,316,312.82
  6. Step 6: Final answer
    x = 478,561.24

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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.