Home / 1,089,240.18-1,630,666.38-763,900.67

Finding the Fourth Proportional to 1,089,240.18, 1,630,666.38 and 763,900.67

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Solution

The fourth proportional to 1,089,240.18, 1,630,666.38 and 763,900.67 is: 1,143,611.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,240.18 : 1,630,666.38 = 763,900.67 : x
  2. Step 2: Convert to fraction form
    1,089,240.18/1,630,666.38 = 763,900.67/x
  3. Step 3: Cross multiply
    1,089,240.18x = 1,630,666.38 × 763,900.67
  4. Step 4: Simplify right side
    1,089,240.18x = 1,245,667,140,228.47
  5. Step 5: Solve for x
    x = 1,245,667,140,228.47/1,089,240.18
  6. Step 6: Final answer
    x = 1,143,611.09

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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.