Home / 789,860.62-1,090,002.72-427,283.02

Finding the Fourth Proportional to 789,860.62, 1,090,002.72 and 427,283.02

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Solution

The fourth proportional to 789,860.62, 1,090,002.72 and 427,283.02 is: 589,647.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,860.62 : 1,090,002.72 = 427,283.02 : x
  2. Step 2: Convert to fraction form
    789,860.62/1,090,002.72 = 427,283.02/x
  3. Step 3: Cross multiply
    789,860.62x = 1,090,002.72 × 427,283.02
  4. Step 4: Simplify right side
    789,860.62x = 465,739,654,009.81
  5. Step 5: Solve for x
    x = 465,739,654,009.81/789,860.62
  6. Step 6: Final answer
    x = 589,647.90

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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.