Home / 1,316,279.46-1,974,419.19-319,007.46

Finding the Fourth Proportional to 1,316,279.46, 1,974,419.19 and 319,007.46

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Solution

The fourth proportional to 1,316,279.46, 1,974,419.19 and 319,007.46 is: 478,511.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,316,279.46 : 1,974,419.19 = 319,007.46 : x
  2. Step 2: Convert to fraction form
    1,316,279.46/1,974,419.19 = 319,007.46/x
  3. Step 3: Cross multiply
    1,316,279.46x = 1,974,419.19 × 319,007.46
  4. Step 4: Simplify right side
    1,316,279.46x = 629,854,450,777.16
  5. Step 5: Solve for x
    x = 629,854,450,777.16/1,316,279.46
  6. Step 6: Final answer
    x = 478,511.19

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Double scale
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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.