Home / 421,799.70-632,681.10-122,273.76

Finding the Fourth Proportional to 421,799.70, 632,681.10 and 122,273.76

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Solution

The fourth proportional to 421,799.70, 632,681.10 and 122,273.76 is: 183,405.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,799.70 : 632,681.10 = 122,273.76 : x
  2. Step 2: Convert to fraction form
    421,799.70/632,681.10 = 122,273.76/x
  3. Step 3: Cross multiply
    421,799.70x = 632,681.10 × 122,273.76
  4. Step 4: Simplify right side
    421,799.70x = 77,360,296,977.94
  5. Step 5: Solve for x
    x = 77,360,296,977.94/421,799.70
  6. Step 6: Final answer
    x = 183,405.29

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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.