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Finding the Fourth Proportional to 489,103.40, 733,655.10 and 302,220.20

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Solution

The fourth proportional to 489,103.40, 733,655.10 and 302,220.20 is: 453,330.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,103.40 : 733,655.10 = 302,220.20 : x
  2. Step 2: Convert to fraction form
    489,103.40/733,655.10 = 302,220.20/x
  3. Step 3: Cross multiply
    489,103.40x = 733,655.10 × 302,220.20
  4. Step 4: Simplify right side
    489,103.40x = 221,725,391,053.02
  5. Step 5: Solve for x
    x = 221,725,391,053.02/489,103.40
  6. Step 6: Final answer
    x = 453,330.30

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Similar ratio
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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.