Home / 455,962.80-682,907.40-288,001.20

Finding the Fourth Proportional to 455,962.80, 682,907.40 and 288,001.20

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Solution

The fourth proportional to 455,962.80, 682,907.40 and 288,001.20 is: 431,346.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,962.80 : 682,907.40 = 288,001.20 : x
  2. Step 2: Convert to fraction form
    455,962.80/682,907.40 = 288,001.20/x
  3. Step 3: Cross multiply
    455,962.80x = 682,907.40 × 288,001.20
  4. Step 4: Simplify right side
    455,962.80x = 196,678,150,688.88
  5. Step 5: Solve for x
    x = 196,678,150,688.88/455,962.80
  6. Step 6: Final answer
    x = 431,346.92

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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.