Home / 848,639.17-1,272,686.49-279,892.40

Finding the Fourth Proportional to 848,639.17, 1,272,686.49 and 279,892.40

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Solution

The fourth proportional to 848,639.17, 1,272,686.49 and 279,892.40 is: 419,748.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,639.17 : 1,272,686.49 = 279,892.40 : x
  2. Step 2: Convert to fraction form
    848,639.17/1,272,686.49 = 279,892.40/x
  3. Step 3: Cross multiply
    848,639.17x = 1,272,686.49 × 279,892.40
  4. Step 4: Simplify right side
    848,639.17x = 356,215,279,315.39
  5. Step 5: Solve for x
    x = 356,215,279,315.39/848,639.17
  6. Step 6: Final answer
    x = 419,748.81

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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.