Home / 789,424.95-1,089,407.19-426,848.71

Finding the Fourth Proportional to 789,424.95, 1,089,407.19 and 426,848.71

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Solution

The fourth proportional to 789,424.95, 1,089,407.19 and 426,848.71 is: 589,051.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,424.95 : 1,089,407.19 = 426,848.71 : x
  2. Step 2: Convert to fraction form
    789,424.95/1,089,407.19 = 426,848.71/x
  3. Step 3: Cross multiply
    789,424.95x = 1,089,407.19 × 426,848.71
  4. Step 4: Simplify right side
    789,424.95x = 465,012,053,716.23
  5. Step 5: Solve for x
    x = 465,012,053,716.23/789,424.95
  6. Step 6: Final answer
    x = 589,051.63

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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.