Home / 910,812.60-1,366,218.90-279,757.80

Finding the Fourth Proportional to 910,812.60, 1,366,218.90 and 279,757.80

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Solution

The fourth proportional to 910,812.60, 1,366,218.90 and 279,757.80 is: 419,636.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,812.60 : 1,366,218.90 = 279,757.80 : x
  2. Step 2: Convert to fraction form
    910,812.60/1,366,218.90 = 279,757.80/x
  3. Step 3: Cross multiply
    910,812.60x = 1,366,218.90 × 279,757.80
  4. Step 4: Simplify right side
    910,812.60x = 382,210,393,782.42
  5. Step 5: Solve for x
    x = 382,210,393,782.42/910,812.60
  6. Step 6: Final answer
    x = 419,636.70

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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.