Home / 1,260,538.60-1,890,980.70-419,002.60

Finding the Fourth Proportional to 1,260,538.60, 1,890,980.70 and 419,002.60

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Solution

The fourth proportional to 1,260,538.60, 1,890,980.70 and 419,002.60 is: 628,561.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,538.60 : 1,890,980.70 = 419,002.60 : x
  2. Step 2: Convert to fraction form
    1,260,538.60/1,890,980.70 = 419,002.60/x
  3. Step 3: Cross multiply
    1,260,538.60x = 1,890,980.70 × 419,002.60
  4. Step 4: Simplify right side
    1,260,538.60x = 792,325,829,849.82
  5. Step 5: Solve for x
    x = 792,325,829,849.82/1,260,538.60
  6. Step 6: Final answer
    x = 628,561.34

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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.