Home / 1,089,386.04-1,634,079.21-290,670.56

Finding the Fourth Proportional to 1,089,386.04, 1,634,079.21 and 290,670.56

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Solution

The fourth proportional to 1,089,386.04, 1,634,079.21 and 290,670.56 is: 436,005.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,386.04 : 1,634,079.21 = 290,670.56 : x
  2. Step 2: Convert to fraction form
    1,089,386.04/1,634,079.21 = 290,670.56/x
  3. Step 3: Cross multiply
    1,089,386.04x = 1,634,079.21 × 290,670.56
  4. Step 4: Simplify right side
    1,089,386.04x = 474,978,709,431.31
  5. Step 5: Solve for x
    x = 474,978,709,431.31/1,089,386.04
  6. Step 6: Final answer
    x = 436,005.87

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Double scale
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1.5x scale

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.