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Finding the Fourth Proportional to 585,004.73, 877,785.75 and 405,367.20

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Solution

The fourth proportional to 585,004.73, 877,785.75 and 405,367.20 is: 608,243.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    585,004.73 : 877,785.75 = 405,367.20 : x
  2. Step 2: Convert to fraction form
    585,004.73/877,785.75 = 405,367.20/x
  3. Step 3: Cross multiply
    585,004.73x = 877,785.75 × 405,367.20
  4. Step 4: Simplify right side
    585,004.73x = 355,825,551,677.40
  5. Step 5: Solve for x
    x = 355,825,551,677.40/585,004.73
  6. Step 6: Final answer
    x = 608,243.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.