Home / 1,312,800.48-1,969,200.72-414,244.80

Finding the Fourth Proportional to 1,312,800.48, 1,969,200.72 and 414,244.80

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Solution

The fourth proportional to 1,312,800.48, 1,969,200.72 and 414,244.80 is: 621,367.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,800.48 : 1,969,200.72 = 414,244.80 : x
  2. Step 2: Convert to fraction form
    1,312,800.48/1,969,200.72 = 414,244.80/x
  3. Step 3: Cross multiply
    1,312,800.48x = 1,969,200.72 × 414,244.80
  4. Step 4: Simplify right side
    1,312,800.48x = 815,731,158,416.26
  5. Step 5: Solve for x
    x = 815,731,158,416.26/1,312,800.48
  6. Step 6: Final answer
    x = 621,367.20

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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.