Home / 808,009.81-1,115,056.91-445,425.73

Finding the Fourth Proportional to 808,009.81, 1,115,056.91 and 445,425.73

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Solution

The fourth proportional to 808,009.81, 1,115,056.91 and 445,425.73 is: 614,689.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,009.81 : 1,115,056.91 = 445,425.73 : x
  2. Step 2: Convert to fraction form
    808,009.81/1,115,056.91 = 445,425.73/x
  3. Step 3: Cross multiply
    808,009.81x = 1,115,056.91 × 445,425.73
  4. Step 4: Simplify right side
    808,009.81x = 496,675,036,454.22
  5. Step 5: Solve for x
    x = 496,675,036,454.22/808,009.81
  6. Step 6: Final answer
    x = 614,689.37

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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.