Home / 918,922.79-1,378,470.62-270,499.41

Finding the Fourth Proportional to 918,922.79, 1,378,470.62 and 270,499.41

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Solution

The fourth proportional to 918,922.79, 1,378,470.62 and 270,499.41 is: 405,774.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    918,922.79 : 1,378,470.62 = 270,499.41 : x
  2. Step 2: Convert to fraction form
    918,922.79/1,378,470.62 = 270,499.41/x
  3. Step 3: Cross multiply
    918,922.79x = 1,378,470.62 × 270,499.41
  4. Step 4: Simplify right side
    918,922.79x = 372,875,481,167.48
  5. Step 5: Solve for x
    x = 372,875,481,167.48/918,922.79
  6. Step 6: Final answer
    x = 405,774.55

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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.