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Finding the Fourth Proportional to 449,490.46, 620,315.68 and 258,504.00

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Solution

The fourth proportional to 449,490.46, 620,315.68 and 258,504.00 is: 356,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,490.46 : 620,315.68 = 258,504.00 : x
  2. Step 2: Convert to fraction form
    449,490.46/620,315.68 = 258,504.00/x
  3. Step 3: Cross multiply
    449,490.46x = 620,315.68 × 258,504.00
  4. Step 4: Simplify right side
    449,490.46x = 160,354,081,441.14
  5. Step 5: Solve for x
    x = 160,354,081,441.14/449,490.46
  6. Step 6: Final answer
    x = 356,746.36

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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.