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Finding the Fourth Proportional to 541,415.21, 747,143.91 and 299,692.58

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Solution

The fourth proportional to 541,415.21, 747,143.91 and 299,692.58 is: 413,570.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,415.21 : 747,143.91 = 299,692.58 : x
  2. Step 2: Convert to fraction form
    541,415.21/747,143.91 = 299,692.58/x
  3. Step 3: Cross multiply
    541,415.21x = 747,143.91 × 299,692.58
  4. Step 4: Simplify right side
    541,415.21x = 223,913,482,283.47
  5. Step 5: Solve for x
    x = 223,913,482,283.47/541,415.21
  6. Step 6: Final answer
    x = 413,570.73

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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.