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Finding the Fourth Proportional to 429,563.26, 592,861.98 and 309,103.30

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Solution

The fourth proportional to 429,563.26, 592,861.98 and 309,103.30 is: 426,609.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,563.26 : 592,861.98 = 309,103.30 : x
  2. Step 2: Convert to fraction form
    429,563.26/592,861.98 = 309,103.30/x
  3. Step 3: Cross multiply
    429,563.26x = 592,861.98 × 309,103.30
  4. Step 4: Simplify right side
    429,563.26x = 183,255,594,462.53
  5. Step 5: Solve for x
    x = 183,255,594,462.53/429,563.26
  6. Step 6: Final answer
    x = 426,609.10

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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.