Home / 558,991.20-771,410.80-304,341.60

Finding the Fourth Proportional to 558,991.20, 771,410.80 and 304,341.60

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Solution

The fourth proportional to 558,991.20, 771,410.80 and 304,341.60 is: 419,993.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,991.20 : 771,410.80 = 304,341.60 : x
  2. Step 2: Convert to fraction form
    558,991.20/771,410.80 = 304,341.60/x
  3. Step 3: Cross multiply
    558,991.20x = 771,410.80 × 304,341.60
  4. Step 4: Simplify right side
    558,991.20x = 234,772,397,129.28
  5. Step 5: Solve for x
    x = 234,772,397,129.28/558,991.20
  6. Step 6: Final answer
    x = 419,993.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.