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Finding the Fourth Proportional to 529,483.76, 730,692.44 and 287,766.98

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Solution

The fourth proportional to 529,483.76, 730,692.44 and 287,766.98 is: 397,121.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,483.76 : 730,692.44 = 287,766.98 : x
  2. Step 2: Convert to fraction form
    529,483.76/730,692.44 = 287,766.98/x
  3. Step 3: Cross multiply
    529,483.76x = 730,692.44 × 287,766.98
  4. Step 4: Simplify right side
    529,483.76x = 210,269,156,767.63
  5. Step 5: Solve for x
    x = 210,269,156,767.63/529,483.76
  6. Step 6: Final answer
    x = 397,121.07

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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.