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Finding the Fourth Proportional to 393,466.70, 590,200.05 and 298,988.30

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Solution

The fourth proportional to 393,466.70, 590,200.05 and 298,988.30 is: 448,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,466.70 : 590,200.05 = 298,988.30 : x
  2. Step 2: Convert to fraction form
    393,466.70/590,200.05 = 298,988.30/x
  3. Step 3: Cross multiply
    393,466.70x = 590,200.05 × 298,988.30
  4. Step 4: Simplify right side
    393,466.70x = 176,462,909,609.42
  5. Step 5: Solve for x
    x = 176,462,909,609.42/393,466.70
  6. Step 6: Final answer
    x = 448,482.45

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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.