Home / 789,425.95-1,089,408.57-426,849.71

Finding the Fourth Proportional to 789,425.95, 1,089,408.57 and 426,849.71

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Solution

The fourth proportional to 789,425.95, 1,089,408.57 and 426,849.71 is: 589,053.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,425.95 : 1,089,408.57 = 426,849.71 : x
  2. Step 2: Convert to fraction form
    789,425.95/1,089,408.57 = 426,849.71/x
  3. Step 3: Cross multiply
    789,425.95x = 1,089,408.57 × 426,849.71
  4. Step 4: Simplify right side
    789,425.95x = 465,013,732,176.02
  5. Step 5: Solve for x
    x = 465,013,732,176.02/789,425.95
  6. Step 6: Final answer
    x = 589,053.01

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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.