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Finding the Fourth Proportional to 577,692.80, 866,409.60 and 379,404.80

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Solution

The fourth proportional to 577,692.80, 866,409.60 and 379,404.80 is: 569,022.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,692.80 : 866,409.60 = 379,404.80 : x
  2. Step 2: Convert to fraction form
    577,692.80/866,409.60 = 379,404.80/x
  3. Step 3: Cross multiply
    577,692.80x = 866,409.60 × 379,404.80
  4. Step 4: Simplify right side
    577,692.80x = 328,719,961,006.08
  5. Step 5: Solve for x
    x = 328,719,961,006.08/577,692.80
  6. Step 6: Final answer
    x = 569,022.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.