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Finding the Fourth Proportional to 529,616.31, 730,692.62 and 300,155.59

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Solution

The fourth proportional to 529,616.31, 730,692.62 and 300,155.59 is: 414,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    529,616.31 : 730,692.62 = 300,155.59 : x
  2. Step 2: Convert to fraction form
    529,616.31/730,692.62 = 300,155.59/x
  3. Step 3: Cross multiply
    529,616.31x = 730,692.62 × 300,155.59
  4. Step 4: Simplify right side
    529,616.31x = 219,321,473,388.40
  5. Step 5: Solve for x
    x = 219,321,473,388.40/529,616.31
  6. Step 6: Final answer
    x = 414,113.90

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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.