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Finding the Fourth Proportional to 449,547.39, 620,350.52 and 258,563.97

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Solution

The fourth proportional to 449,547.39, 620,350.52 and 258,563.97 is: 356,803.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,547.39 : 620,350.52 = 258,563.97 : x
  2. Step 2: Convert to fraction form
    449,547.39/620,350.52 = 258,563.97/x
  3. Step 3: Cross multiply
    449,547.39x = 620,350.52 × 258,563.97
  4. Step 4: Simplify right side
    449,547.39x = 160,400,291,949.95
  5. Step 5: Solve for x
    x = 160,400,291,949.95/449,547.39
  6. Step 6: Final answer
    x = 356,803.97

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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.