Home / 1,089,240.67-1,630,667.13-763,901.17

Finding the Fourth Proportional to 1,089,240.67, 1,630,667.13 and 763,901.17

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Solution

The fourth proportional to 1,089,240.67, 1,630,667.13 and 763,901.17 is: 1,143,611.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,240.67 : 1,630,667.13 = 763,901.17 : x
  2. Step 2: Convert to fraction form
    1,089,240.67/1,630,667.13 = 763,901.17/x
  3. Step 3: Cross multiply
    1,089,240.67x = 1,630,667.13 × 763,901.17
  4. Step 4: Simplify right side
    1,089,240.67x = 1,245,668,528,487.54
  5. Step 5: Solve for x
    x = 1,245,668,528,487.54/1,089,240.67
  6. Step 6: Final answer
    x = 1,143,611.84

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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.