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Finding the Fourth Proportional to 889,396.62, 1,333,691.52 and 383,718.48

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Solution

The fourth proportional to 889,396.62, 1,333,691.52 and 383,718.48 is: 575,403.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,396.62 : 1,333,691.52 = 383,718.48 : x
  2. Step 2: Convert to fraction form
    889,396.62/1,333,691.52 = 383,718.48/x
  3. Step 3: Cross multiply
    889,396.62x = 1,333,691.52 × 383,718.48
  4. Step 4: Simplify right side
    889,396.62x = 511,762,082,843.29
  5. Step 5: Solve for x
    x = 511,762,082,843.29/889,396.62
  6. Step 6: Final answer
    x = 575,403.67

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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.