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Finding the Fourth Proportional to 538,641.18, 743,319.71 and 293,625.90

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Solution

The fourth proportional to 538,641.18, 743,319.71 and 293,625.90 is: 405,200.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,641.18 : 743,319.71 = 293,625.90 : x
  2. Step 2: Convert to fraction form
    538,641.18/743,319.71 = 293,625.90/x
  3. Step 3: Cross multiply
    538,641.18x = 743,319.71 × 293,625.90
  4. Step 4: Simplify right side
    538,641.18x = 218,257,917,368.36
  5. Step 5: Solve for x
    x = 218,257,917,368.36/538,641.18
  6. Step 6: Final answer
    x = 405,200.95

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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.