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Finding the Fourth Proportional to 889,841.16, 1,334,750.49 and 215,928

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Solution

The fourth proportional to 889,841.16, 1,334,750.49 and 215,928 is: 323,889.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,841.16 : 1,334,750.49 = 215,928 : x
  2. Step 2: Convert to fraction form
    889,841.16/1,334,750.49 = 215,928/x
  3. Step 3: Cross multiply
    889,841.16x = 1,334,750.49 × 215,928
  4. Step 4: Simplify right side
    889,841.16x = 288,210,003,804.72
  5. Step 5: Solve for x
    x = 288,210,003,804.72/889,841.16
  6. Step 6: Final answer
    x = 323,889.27

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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.