Home / 1,455,745.20-2,183,617.80-509,211.60

Finding the Fourth Proportional to 1,455,745.20, 2,183,617.80 and 509,211.60

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Solution

The fourth proportional to 1,455,745.20, 2,183,617.80 and 509,211.60 is: 763,817.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,455,745.20 : 2,183,617.80 = 509,211.60 : x
  2. Step 2: Convert to fraction form
    1,455,745.20/2,183,617.80 = 509,211.60/x
  3. Step 3: Cross multiply
    1,455,745.20x = 2,183,617.80 × 509,211.60
  4. Step 4: Simplify right side
    1,455,745.20x = 1,111,923,513,726.48
  5. Step 5: Solve for x
    x = 1,111,923,513,726.48/1,455,745.20
  6. Step 6: Final answer
    x = 763,817.40

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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.