Home / 780,977.66-1,171,466.52-407,729.66

Finding the Fourth Proportional to 780,977.66, 1,171,466.52 and 407,729.66

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Solution

The fourth proportional to 780,977.66, 1,171,466.52 and 407,729.66 is: 611,594.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,977.66 : 1,171,466.52 = 407,729.66 : x
  2. Step 2: Convert to fraction form
    780,977.66/1,171,466.52 = 407,729.66/x
  3. Step 3: Cross multiply
    780,977.66x = 1,171,466.52 × 407,729.66
  4. Step 4: Simplify right side
    780,977.66x = 477,641,645,900.98
  5. Step 5: Solve for x
    x = 477,641,645,900.98/780,977.66
  6. Step 6: Final answer
    x = 611,594.51

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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.