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Finding the Fourth Proportional to 489,214.40, 733,821.60 and 302,590.40

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Solution

The fourth proportional to 489,214.40, 733,821.60 and 302,590.40 is: 453,885.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,214.40 : 733,821.60 = 302,590.40 : x
  2. Step 2: Convert to fraction form
    489,214.40/733,821.60 = 302,590.40/x
  3. Step 3: Cross multiply
    489,214.40x = 733,821.60 × 302,590.40
  4. Step 4: Simplify right side
    489,214.40x = 222,047,371,472.64
  5. Step 5: Solve for x
    x = 222,047,371,472.64/489,214.40
  6. Step 6: Final answer
    x = 453,885.60

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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.