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Finding the Fourth Proportional to 449,637.86, 673,248.20 and 342,511.50

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Solution

The fourth proportional to 449,637.86, 673,248.20 and 342,511.50 is: 512,846.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,637.86 : 673,248.20 = 342,511.50 : x
  2. Step 2: Convert to fraction form
    449,637.86/673,248.20 = 342,511.50/x
  3. Step 3: Cross multiply
    449,637.86x = 673,248.20 × 342,511.50
  4. Step 4: Simplify right side
    449,637.86x = 230,595,249,141.74
  5. Step 5: Solve for x
    x = 230,595,249,141.74/449,637.86
  6. Step 6: Final answer
    x = 512,846.60

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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.