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Finding the Fourth Proportional to 442,564.80, 663,847.20 and 302,596.80

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Solution

The fourth proportional to 442,564.80, 663,847.20 and 302,596.80 is: 453,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,564.80 : 663,847.20 = 302,596.80 : x
  2. Step 2: Convert to fraction form
    442,564.80/663,847.20 = 302,596.80/x
  3. Step 3: Cross multiply
    442,564.80x = 663,847.20 × 302,596.80
  4. Step 4: Simplify right side
    442,564.80x = 200,878,038,408.96
  5. Step 5: Solve for x
    x = 200,878,038,408.96/442,564.80
  6. Step 6: Final answer
    x = 453,895.20

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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.