Home / 789,424.36-1,089,406.38-426,848.12

Finding the Fourth Proportional to 789,424.36, 1,089,406.38 and 426,848.12

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Solution

The fourth proportional to 789,424.36, 1,089,406.38 and 426,848.12 is: 589,050.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,424.36 : 1,089,406.38 = 426,848.12 : x
  2. Step 2: Convert to fraction form
    789,424.36/1,089,406.38 = 426,848.12/x
  3. Step 3: Cross multiply
    789,424.36x = 1,089,406.38 × 426,848.12
  4. Step 4: Simplify right side
    789,424.36x = 465,011,065,219.01
  5. Step 5: Solve for x
    x = 465,011,065,219.01/789,424.36
  6. Step 6: Final answer
    x = 589,050.82

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.