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Finding the Fourth Proportional to 489,019.20, 733,466.42 and 189,294.69

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Solution

The fourth proportional to 489,019.20, 733,466.42 and 189,294.69 is: 283,917.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,019.20 : 733,466.42 = 189,294.69 : x
  2. Step 2: Convert to fraction form
    489,019.20/733,466.42 = 189,294.69/x
  3. Step 3: Cross multiply
    489,019.20x = 733,466.42 × 189,294.69
  4. Step 4: Simplify right side
    489,019.20x = 138,841,298,599.31
  5. Step 5: Solve for x
    x = 138,841,298,599.31/489,019.20
  6. Step 6: Final answer
    x = 283,917.89

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1.5x scale

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.