Home / 1,316,279.96-1,974,419.94-319,007.96

Finding the Fourth Proportional to 1,316,279.96, 1,974,419.94 and 319,007.96

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Solution

The fourth proportional to 1,316,279.96, 1,974,419.94 and 319,007.96 is: 478,511.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,279.96 : 1,974,419.94 = 319,007.96 : x
  2. Step 2: Convert to fraction form
    1,316,279.96/1,974,419.94 = 319,007.96/x
  3. Step 3: Cross multiply
    1,316,279.96x = 1,974,419.94 × 319,007.96
  4. Step 4: Simplify right side
    1,316,279.96x = 629,855,677,242.72
  5. Step 5: Solve for x
    x = 629,855,677,242.72/1,316,279.96
  6. Step 6: Final answer
    x = 478,511.94

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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.