Home / 1,419,260.60-2,128,234.80-620,130.80

Finding the Fourth Proportional to 1,419,260.60, 2,128,234.80 and 620,130.80

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Solution

The fourth proportional to 1,419,260.60, 2,128,234.80 and 620,130.80 is: 929,909.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,260.60 : 2,128,234.80 = 620,130.80 : x
  2. Step 2: Convert to fraction form
    1,419,260.60/2,128,234.80 = 620,130.80/x
  3. Step 3: Cross multiply
    1,419,260.60x = 2,128,234.80 × 620,130.80
  4. Step 4: Simplify right side
    1,419,260.60x = 1,319,783,949,111.84
  5. Step 5: Solve for x
    x = 1,319,783,949,111.84/1,419,260.60
  6. Step 6: Final answer
    x = 929,909.52

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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.