Home / 1,395,421.40-2,093,285.70-509,149.40

Finding the Fourth Proportional to 1,395,421.40, 2,093,285.70 and 509,149.40

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Solution

The fourth proportional to 1,395,421.40, 2,093,285.70 and 509,149.40 is: 763,780.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,421.40 : 2,093,285.70 = 509,149.40 : x
  2. Step 2: Convert to fraction form
    1,395,421.40/2,093,285.70 = 509,149.40/x
  3. Step 3: Cross multiply
    1,395,421.40x = 2,093,285.70 × 509,149.40
  4. Step 4: Simplify right side
    1,395,421.40x = 1,065,795,158,183.58
  5. Step 5: Solve for x
    x = 1,065,795,158,183.58/1,395,421.40
  6. Step 6: Final answer
    x = 763,780.14

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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.