Home / 558,519.12-770,764.28-303,870.51

Finding the Fourth Proportional to 558,519.12, 770,764.28 and 303,870.51

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Solution

The fourth proportional to 558,519.12, 770,764.28 and 303,870.51 is: 419,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,519.12 : 770,764.28 = 303,870.51 : x
  2. Step 2: Convert to fraction form
    558,519.12/770,764.28 = 303,870.51/x
  3. Step 3: Cross multiply
    558,519.12x = 770,764.28 × 303,870.51
  4. Step 4: Simplify right side
    558,519.12x = 234,212,533,334.03
  5. Step 5: Solve for x
    x = 234,212,533,334.03/558,519.12
  6. Step 6: Final answer
    x = 419,345.60

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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.