Home / 848,073.65-1,272,297.98-279,431.78

Finding the Fourth Proportional to 848,073.65, 1,272,297.98 and 279,431.78

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Solution

The fourth proportional to 848,073.65, 1,272,297.98 and 279,431.78 is: 419,209.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    848,073.65 : 1,272,297.98 = 279,431.78 : x
  2. Step 2: Convert to fraction form
    848,073.65/1,272,297.98 = 279,431.78/x
  3. Step 3: Cross multiply
    848,073.65x = 1,272,297.98 × 279,431.78
  4. Step 4: Simplify right side
    848,073.65x = 355,520,483,578.89
  5. Step 5: Solve for x
    x = 355,520,483,578.89/848,073.65
  6. Step 6: Final answer
    x = 419,209.45

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Double scale
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Similar ratio
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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.