Home / 455,197.20-682,795.80-278,050.20

Finding the Fourth Proportional to 455,197.20, 682,795.80 and 278,050.20

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Solution

The fourth proportional to 455,197.20, 682,795.80 and 278,050.20 is: 417,075.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,197.20 : 682,795.80 = 278,050.20 : x
  2. Step 2: Convert to fraction form
    455,197.20/682,795.80 = 278,050.20/x
  3. Step 3: Cross multiply
    455,197.20x = 682,795.80 × 278,050.20
  4. Step 4: Simplify right side
    455,197.20x = 189,851,508,749.16
  5. Step 5: Solve for x
    x = 189,851,508,749.16/455,197.20
  6. Step 6: Final answer
    x = 417,075.30

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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.