Home / 848,063.79-1,272,283.28-279,421.92

Finding the Fourth Proportional to 848,063.79, 1,272,283.28 and 279,421.92

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Solution

The fourth proportional to 848,063.79, 1,272,283.28 and 279,421.92 is: 419,194.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,063.79 : 1,272,283.28 = 279,421.92 : x
  2. Step 2: Convert to fraction form
    848,063.79/1,272,283.28 = 279,421.92/x
  3. Step 3: Cross multiply
    848,063.79x = 1,272,283.28 × 279,421.92
  4. Step 4: Simplify right side
    848,063.79x = 355,503,832,147.11
  5. Step 5: Solve for x
    x = 355,503,832,147.11/848,063.79
  6. Step 6: Final answer
    x = 419,194.69

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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.