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Finding the Fourth Proportional to 438,409.82, 604,993.29 and 247,440.98

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Solution

The fourth proportional to 438,409.82, 604,993.29 and 247,440.98 is: 341,461.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,409.82 : 604,993.29 = 247,440.98 : x
  2. Step 2: Convert to fraction form
    438,409.82/604,993.29 = 247,440.98/x
  3. Step 3: Cross multiply
    438,409.82x = 604,993.29 × 247,440.98
  4. Step 4: Simplify right side
    438,409.82x = 149,700,129,546.06
  5. Step 5: Solve for x
    x = 149,700,129,546.06/438,409.82
  6. Step 6: Final answer
    x = 341,461.63

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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.