Home / 818,719.92-1,227,486.96-345,145.32

Finding the Fourth Proportional to 818,719.92, 1,227,486.96 and 345,145.32

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Solution

The fourth proportional to 818,719.92, 1,227,486.96 and 345,145.32 is: 517,468.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,719.92 : 1,227,486.96 = 345,145.32 : x
  2. Step 2: Convert to fraction form
    818,719.92/1,227,486.96 = 345,145.32/x
  3. Step 3: Cross multiply
    818,719.92x = 1,227,486.96 × 345,145.32
  4. Step 4: Simplify right side
    818,719.92x = 423,661,379,605.03
  5. Step 5: Solve for x
    x = 423,661,379,605.03/818,719.92
  6. Step 6: Final answer
    x = 517,468.02

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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.