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Finding the Fourth Proportional to 449,477.47, 620,404.01 and 258,552.37

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Solution

The fourth proportional to 449,477.47, 620,404.01 and 258,552.37 is: 356,874.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,477.47 : 620,404.01 = 258,552.37 : x
  2. Step 2: Convert to fraction form
    449,477.47/620,404.01 = 258,552.37/x
  3. Step 3: Cross multiply
    449,477.47x = 620,404.01 × 258,552.37
  4. Step 4: Simplify right side
    449,477.47x = 160,406,927,143.00
  5. Step 5: Solve for x
    x = 160,406,927,143.00/449,477.47
  6. Step 6: Final answer
    x = 356,874.23

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1.5x scale

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.