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Finding the Fourth Proportional to 558,005.82, 770,053.46 and 303,362.47

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Solution

The fourth proportional to 558,005.82, 770,053.46 and 303,362.47 is: 418,643.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,005.82 : 770,053.46 = 303,362.47 : x
  2. Step 2: Convert to fraction form
    558,005.82/770,053.46 = 303,362.47/x
  3. Step 3: Cross multiply
    558,005.82x = 770,053.46 × 303,362.47
  4. Step 4: Simplify right side
    558,005.82x = 233,605,319,657.65
  5. Step 5: Solve for x
    x = 233,605,319,657.65/558,005.82
  6. Step 6: Final answer
    x = 418,643.16

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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.