Home / 398,945.01-550,636.47-263,002.98

Finding the Fourth Proportional to 398,945.01, 550,636.47 and 263,002.98

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Solution

The fourth proportional to 398,945.01, 550,636.47 and 263,002.98 is: 363,005.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,945.01 : 550,636.47 = 263,002.98 : x
  2. Step 2: Convert to fraction form
    398,945.01/550,636.47 = 263,002.98/x
  3. Step 3: Cross multiply
    398,945.01x = 550,636.47 × 263,002.98
  4. Step 4: Simplify right side
    398,945.01x = 144,819,032,506.68
  5. Step 5: Solve for x
    x = 144,819,032,506.68/398,945.01
  6. Step 6: Final answer
    x = 363,005.00

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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.