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Finding the Fourth Proportional to 536,625.21, 740,381.11 and 321,686.85

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Solution

The fourth proportional to 536,625.21, 740,381.11 and 321,686.85 is: 443,830.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,625.21 : 740,381.11 = 321,686.85 : x
  2. Step 2: Convert to fraction form
    536,625.21/740,381.11 = 321,686.85/x
  3. Step 3: Cross multiply
    536,625.21x = 740,381.11 × 321,686.85
  4. Step 4: Simplify right side
    536,625.21x = 238,170,867,075.40
  5. Step 5: Solve for x
    x = 238,170,867,075.40/536,625.21
  6. Step 6: Final answer
    x = 443,830.93

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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.