Home / 447,239.20-670,858.80-210,503.20

Finding the Fourth Proportional to 447,239.20, 670,858.80 and 210,503.20

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Solution

The fourth proportional to 447,239.20, 670,858.80 and 210,503.20 is: 315,754.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,239.20 : 670,858.80 = 210,503.20 : x
  2. Step 2: Convert to fraction form
    447,239.20/670,858.80 = 210,503.20/x
  3. Step 3: Cross multiply
    447,239.20x = 670,858.80 × 210,503.20
  4. Step 4: Simplify right side
    447,239.20x = 141,217,924,148.16
  5. Step 5: Solve for x
    x = 141,217,924,148.16/447,239.20
  6. Step 6: Final answer
    x = 315,754.80

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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.