Home / 1,219,145.80-1,827,832.74-509,376.82

Finding the Fourth Proportional to 1,219,145.80, 1,827,832.74 and 509,376.82

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Solution

The fourth proportional to 1,219,145.80, 1,827,832.74 and 509,376.82 is: 763,695.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,145.80 : 1,827,832.74 = 509,376.82 : x
  2. Step 2: Convert to fraction form
    1,219,145.80/1,827,832.74 = 509,376.82/x
  3. Step 3: Cross multiply
    1,219,145.80x = 1,827,832.74 × 509,376.82
  4. Step 4: Simplify right side
    1,219,145.80x = 931,055,628,593.09
  5. Step 5: Solve for x
    x = 931,055,628,593.09/1,219,145.80
  6. Step 6: Final answer
    x = 763,695.06

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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.