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Finding the Fourth Proportional to 554,622.66, 765,199.44 and 309,567.42

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Solution

The fourth proportional to 554,622.66, 765,199.44 and 309,567.42 is: 427,102.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,622.66 : 765,199.44 = 309,567.42 : x
  2. Step 2: Convert to fraction form
    554,622.66/765,199.44 = 309,567.42/x
  3. Step 3: Cross multiply
    554,622.66x = 765,199.44 × 309,567.42
  4. Step 4: Simplify right side
    554,622.66x = 236,880,816,426.25
  5. Step 5: Solve for x
    x = 236,880,816,426.25/554,622.66
  6. Step 6: Final answer
    x = 427,102.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.