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Finding the Fourth Proportional to 994,953.60, 1,492,065.90 and 321,211.80

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Solution

The fourth proportional to 994,953.60, 1,492,065.90 and 321,211.80 is: 481,700.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    994,953.60 : 1,492,065.90 = 321,211.80 : x
  2. Step 2: Convert to fraction form
    994,953.60/1,492,065.90 = 321,211.80/x
  3. Step 3: Cross multiply
    994,953.60x = 1,492,065.90 × 321,211.80
  4. Step 4: Simplify right side
    994,953.60x = 479,269,173,457.62
  5. Step 5: Solve for x
    x = 479,269,173,457.62/994,953.60
  6. Step 6: Final answer
    x = 481,700.02

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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.