Home / 848,639.42-1,272,686.86-279,892.65

Finding the Fourth Proportional to 848,639.42, 1,272,686.86 and 279,892.65

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Solution

The fourth proportional to 848,639.42, 1,272,686.86 and 279,892.65 is: 419,749.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,639.42 : 1,272,686.86 = 279,892.65 : x
  2. Step 2: Convert to fraction form
    848,639.42/1,272,686.86 = 279,892.65/x
  3. Step 3: Cross multiply
    848,639.42x = 1,272,686.86 × 279,892.65
  4. Step 4: Simplify right side
    848,639.42x = 356,215,697,865.58
  5. Step 5: Solve for x
    x = 356,215,697,865.58/848,639.42
  6. Step 6: Final answer
    x = 419,749.18

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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.