Home / 1,089,751.89-1,634,611.38-490,289.72

Finding the Fourth Proportional to 1,089,751.89, 1,634,611.38 and 490,289.72

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Solution

The fourth proportional to 1,089,751.89, 1,634,611.38 and 490,289.72 is: 735,427.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,751.89 : 1,634,611.38 = 490,289.72 : x
  2. Step 2: Convert to fraction form
    1,089,751.89/1,634,611.38 = 490,289.72/x
  3. Step 3: Cross multiply
    1,089,751.89x = 1,634,611.38 × 490,289.72
  4. Step 4: Simplify right side
    1,089,751.89x = 801,433,155,809.01
  5. Step 5: Solve for x
    x = 801,433,155,809.01/1,089,751.89
  6. Step 6: Final answer
    x = 735,427.18

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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.