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Finding the Fourth Proportional to 420,750.40, 630,425.76 and 295,829.44

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Solution

The fourth proportional to 420,750.40, 630,425.76 and 295,829.44 is: 443,252.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,750.40 : 630,425.76 = 295,829.44 : x
  2. Step 2: Convert to fraction form
    420,750.40/630,425.76 = 295,829.44/x
  3. Step 3: Cross multiply
    420,750.40x = 630,425.76 × 295,829.44
  4. Step 4: Simplify right side
    420,750.40x = 186,498,499,542.37
  5. Step 5: Solve for x
    x = 186,498,499,542.37/420,750.40
  6. Step 6: Final answer
    x = 443,252.10

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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.