Home / 787,510.20-1,181,438.10-254,940.60

Finding the Fourth Proportional to 787,510.20, 1,181,438.10 and 254,940.60

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Solution

The fourth proportional to 787,510.20, 1,181,438.10 and 254,940.60 is: 382,466.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,510.20 : 1,181,438.10 = 254,940.60 : x
  2. Step 2: Convert to fraction form
    787,510.20/1,181,438.10 = 254,940.60/x
  3. Step 3: Cross multiply
    787,510.20x = 1,181,438.10 × 254,940.60
  4. Step 4: Simplify right side
    787,510.20x = 301,196,538,076.86
  5. Step 5: Solve for x
    x = 301,196,538,076.86/787,510.20
  6. Step 6: Final answer
    x = 382,466.84

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1.5x scale

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.