Home / 450,999.40-622,389.24-257,403.24

Finding the Fourth Proportional to 450,999.40, 622,389.24 and 257,403.24

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Solution

The fourth proportional to 450,999.40, 622,389.24 and 257,403.24 is: 355,222.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,999.40 : 622,389.24 = 257,403.24 : x
  2. Step 2: Convert to fraction form
    450,999.40/622,389.24 = 257,403.24/x
  3. Step 3: Cross multiply
    450,999.40x = 622,389.24 × 257,403.24
  4. Step 4: Simplify right side
    450,999.40x = 160,205,006,917.14
  5. Step 5: Solve for x
    x = 160,205,006,917.14/450,999.40
  6. Step 6: Final answer
    x = 355,222.22

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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.