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Finding the Fourth Proportional to 449,319.69, 620,038.05 and 245,331.32

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Solution

The fourth proportional to 449,319.69, 620,038.05 and 245,331.32 is: 338,544.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,319.69 : 620,038.05 = 245,331.32 : x
  2. Step 2: Convert to fraction form
    449,319.69/620,038.05 = 245,331.32/x
  3. Step 3: Cross multiply
    449,319.69x = 620,038.05 × 245,331.32
  4. Step 4: Simplify right side
    449,319.69x = 152,114,750,156.54
  5. Step 5: Solve for x
    x = 152,114,750,156.54/449,319.69
  6. Step 6: Final answer
    x = 338,544.59

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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.