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Finding the Fourth Proportional to 489,108.40, 733,662.60 and 302,225.20

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Solution

The fourth proportional to 489,108.40, 733,662.60 and 302,225.20 is: 453,337.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,108.40 : 733,662.60 = 302,225.20 : x
  2. Step 2: Convert to fraction form
    489,108.40/733,662.60 = 302,225.20/x
  3. Step 3: Cross multiply
    489,108.40x = 733,662.60 × 302,225.20
  4. Step 4: Simplify right side
    489,108.40x = 221,731,326,017.52
  5. Step 5: Solve for x
    x = 221,731,326,017.52/489,108.40
  6. Step 6: Final answer
    x = 453,337.80

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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.