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Finding the Fourth Proportional to 503,490.40, 755,235.60 and 484,136.80

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Solution

The fourth proportional to 503,490.40, 755,235.60 and 484,136.80 is: 726,205.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,490.40 : 755,235.60 = 484,136.80 : x
  2. Step 2: Convert to fraction form
    503,490.40/755,235.60 = 484,136.80/x
  3. Step 3: Cross multiply
    503,490.40x = 755,235.60 × 484,136.80
  4. Step 4: Simplify right side
    503,490.40x = 365,637,346,630.08
  5. Step 5: Solve for x
    x = 365,637,346,630.08/503,490.40
  6. Step 6: Final answer
    x = 726,205.20

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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.