Home / 1,393,271.80-2,089,907.70-826,401.40

Finding the Fourth Proportional to 1,393,271.80, 2,089,907.70 and 826,401.40

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Solution

The fourth proportional to 1,393,271.80, 2,089,907.70 and 826,401.40 is: 1,239,602.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,271.80 : 2,089,907.70 = 826,401.40 : x
  2. Step 2: Convert to fraction form
    1,393,271.80/2,089,907.70 = 826,401.40/x
  3. Step 3: Cross multiply
    1,393,271.80x = 2,089,907.70 × 826,401.40
  4. Step 4: Simplify right side
    1,393,271.80x = 1,727,102,649,150.78
  5. Step 5: Solve for x
    x = 1,727,102,649,150.78/1,393,271.80
  6. Step 6: Final answer
    x = 1,239,602.10

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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.