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Finding the Fourth Proportional to 889,284, 1,334,175.84 and 357,178.56

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Solution

The fourth proportional to 889,284, 1,334,175.84 and 357,178.56 is: 535,868.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,284 : 1,334,175.84 = 357,178.56 : x
  2. Step 2: Convert to fraction form
    889,284/1,334,175.84 = 357,178.56/x
  3. Step 3: Cross multiply
    889,284x = 1,334,175.84 × 357,178.56
  4. Step 4: Simplify right side
    889,284x = 476,539,005,317.99
  5. Step 5: Solve for x
    x = 476,539,005,317.99/889,284
  6. Step 6: Final answer
    x = 535,868.19

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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.