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Finding the Fourth Proportional to 543,293.06, 749,778.32 and 313,859.98

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Solution

The fourth proportional to 543,293.06, 749,778.32 and 313,859.98 is: 433,146.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,293.06 : 749,778.32 = 313,859.98 : x
  2. Step 2: Convert to fraction form
    543,293.06/749,778.32 = 313,859.98/x
  3. Step 3: Cross multiply
    543,293.06x = 749,778.32 × 313,859.98
  4. Step 4: Simplify right side
    543,293.06x = 235,325,410,241.51
  5. Step 5: Solve for x
    x = 235,325,410,241.51/543,293.06
  6. Step 6: Final answer
    x = 433,146.36

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1.5x scale

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.