Home / 848,416.10-1,272,353.67-279,691.20

Finding the Fourth Proportional to 848,416.10, 1,272,353.67 and 279,691.20

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Solution

The fourth proportional to 848,416.10, 1,272,353.67 and 279,691.20 is: 419,447.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,416.10 : 1,272,353.67 = 279,691.20 : x
  2. Step 2: Convert to fraction form
    848,416.10/1,272,353.67 = 279,691.20/x
  3. Step 3: Cross multiply
    848,416.10x = 1,272,353.67 × 279,691.20
  4. Step 4: Simplify right side
    848,416.10x = 355,866,124,786.70
  5. Step 5: Solve for x
    x = 355,866,124,786.70/848,416.10
  6. Step 6: Final answer
    x = 419,447.64

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Double scale
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1.5x scale

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.