Home / 789,038.20-1,182,974.10-434,452.60

Finding the Fourth Proportional to 789,038.20, 1,182,974.10 and 434,452.60

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Solution

The fourth proportional to 789,038.20, 1,182,974.10 and 434,452.60 is: 651,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,038.20 : 1,182,974.10 = 434,452.60 : x
  2. Step 2: Convert to fraction form
    789,038.20/1,182,974.10 = 434,452.60/x
  3. Step 3: Cross multiply
    789,038.20x = 1,182,974.10 × 434,452.60
  4. Step 4: Simplify right side
    789,038.20x = 513,946,173,477.66
  5. Step 5: Solve for x
    x = 513,946,173,477.66/789,038.20
  6. Step 6: Final answer
    x = 651,357.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.