Home / 419,980.77-629,973.65-104,437.67

Finding the Fourth Proportional to 419,980.77, 629,973.65 and 104,437.67

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Solution

The fourth proportional to 419,980.77, 629,973.65 and 104,437.67 is: 156,657.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,980.77 : 629,973.65 = 104,437.67 : x
  2. Step 2: Convert to fraction form
    419,980.77/629,973.65 = 104,437.67/x
  3. Step 3: Cross multiply
    419,980.77x = 629,973.65 × 104,437.67
  4. Step 4: Simplify right side
    419,980.77x = 65,792,977,278.62
  5. Step 5: Solve for x
    x = 65,792,977,278.62/419,980.77
  6. Step 6: Final answer
    x = 156,657.12

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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.