Home / 789,651.40-1,089,718.86-427,075.24

Finding the Fourth Proportional to 789,651.40, 1,089,718.86 and 427,075.24

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Solution

The fourth proportional to 789,651.40, 1,089,718.86 and 427,075.24 is: 589,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,651.40 : 1,089,718.86 = 427,075.24 : x
  2. Step 2: Convert to fraction form
    789,651.40/1,089,718.86 = 427,075.24/x
  3. Step 3: Cross multiply
    789,651.40x = 1,089,718.86 × 427,075.24
  4. Step 4: Simplify right side
    789,651.40x = 465,391,943,667.03
  5. Step 5: Solve for x
    x = 465,391,943,667.03/789,651.40
  6. Step 6: Final answer
    x = 589,363.79

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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.