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Finding the Fourth Proportional to 455,075.60, 682,613.40 and 302,860.40

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Solution

The fourth proportional to 455,075.60, 682,613.40 and 302,860.40 is: 454,290.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,075.60 : 682,613.40 = 302,860.40 : x
  2. Step 2: Convert to fraction form
    455,075.60/682,613.40 = 302,860.40/x
  3. Step 3: Cross multiply
    455,075.60x = 682,613.40 × 302,860.40
  4. Step 4: Simplify right side
    455,075.60x = 206,736,567,369.36
  5. Step 5: Solve for x
    x = 206,736,567,369.36/455,075.60
  6. Step 6: Final answer
    x = 454,290.60

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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.