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Finding the Fourth Proportional to 558,309.54, 770,220.06 and 343,322.58

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Solution

The fourth proportional to 558,309.54, 770,220.06 and 343,322.58 is: 473,633.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,309.54 : 770,220.06 = 343,322.58 : x
  2. Step 2: Convert to fraction form
    558,309.54/770,220.06 = 343,322.58/x
  3. Step 3: Cross multiply
    558,309.54x = 770,220.06 × 343,322.58
  4. Step 4: Simplify right side
    558,309.54x = 264,433,939,767.82
  5. Step 5: Solve for x
    x = 264,433,939,767.82/558,309.54
  6. Step 6: Final answer
    x = 473,633.21

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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.