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Finding the Fourth Proportional to 449,569.04, 620,404.80 and 258,577.52

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Solution

The fourth proportional to 449,569.04, 620,404.80 and 258,577.52 is: 356,836.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,569.04 : 620,404.80 = 258,577.52 : x
  2. Step 2: Convert to fraction form
    449,569.04/620,404.80 = 258,577.52/x
  3. Step 3: Cross multiply
    449,569.04x = 620,404.80 × 258,577.52
  4. Step 4: Simplify right side
    449,569.04x = 160,422,734,580.10
  5. Step 5: Solve for x
    x = 160,422,734,580.10/449,569.04
  6. Step 6: Final answer
    x = 356,836.70

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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.