Home / 558,288.06-770,435.38-303,643.50

Finding the Fourth Proportional to 558,288.06, 770,435.38 and 303,643.50

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Solution

The fourth proportional to 558,288.06, 770,435.38 and 303,643.50 is: 419,026.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,288.06 : 770,435.38 = 303,643.50 : x
  2. Step 2: Convert to fraction form
    558,288.06/770,435.38 = 303,643.50/x
  3. Step 3: Cross multiply
    558,288.06x = 770,435.38 × 303,643.50
  4. Step 4: Simplify right side
    558,288.06x = 233,937,695,307.03
  5. Step 5: Solve for x
    x = 233,937,695,307.03/558,288.06
  6. Step 6: Final answer
    x = 419,026.86

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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.