Home / 3,118,658.10-4,678,458.03-1,321,548.90

Finding the Fourth Proportional to 3,118,658.10, 4,678,458.03 and 1,321,548.90

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Solution

The fourth proportional to 3,118,658.10, 4,678,458.03 and 1,321,548.90 is: 1,982,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,118,658.10 : 4,678,458.03 = 1,321,548.90 : x
  2. Step 2: Convert to fraction form
    3,118,658.10/4,678,458.03 = 1,321,548.90/x
  3. Step 3: Cross multiply
    3,118,658.10x = 4,678,458.03 × 1,321,548.90
  4. Step 4: Simplify right side
    3,118,658.10x = 6,182,811,063,242.67
  5. Step 5: Solve for x
    x = 6,182,811,063,242.67/3,118,658.10
  6. Step 6: Final answer
    x = 1,982,522.89

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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.