Home / 708,928.80-1,064,170.80-442,989.60

Finding the Fourth Proportional to 708,928.80, 1,064,170.80 and 442,989.60

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Solution

The fourth proportional to 708,928.80, 1,064,170.80 and 442,989.60 is: 664,970.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,928.80 : 1,064,170.80 = 442,989.60 : x
  2. Step 2: Convert to fraction form
    708,928.80/1,064,170.80 = 442,989.60/x
  3. Step 3: Cross multiply
    708,928.80x = 1,064,170.80 × 442,989.60
  4. Step 4: Simplify right side
    708,928.80x = 471,416,597,023.68
  5. Step 5: Solve for x
    x = 471,416,597,023.68/708,928.80
  6. Step 6: Final answer
    x = 664,970.30

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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.