Home / 818,919.36-1,227,797.40-313,054.08

Finding the Fourth Proportional to 818,919.36, 1,227,797.40 and 313,054.08

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Solution

The fourth proportional to 818,919.36, 1,227,797.40 and 313,054.08 is: 469,358.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,919.36 : 1,227,797.40 = 313,054.08 : x
  2. Step 2: Convert to fraction form
    818,919.36/1,227,797.40 = 313,054.08/x
  3. Step 3: Cross multiply
    818,919.36x = 1,227,797.40 × 313,054.08
  4. Step 4: Simplify right side
    818,919.36x = 384,366,985,483.39
  5. Step 5: Solve for x
    x = 384,366,985,483.39/818,919.36
  6. Step 6: Final answer
    x = 469,358.77

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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.