Home / 728,928.80-1,093,393.20-447,533.60

Finding the Fourth Proportional to 728,928.80, 1,093,393.20 and 447,533.60

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Solution

The fourth proportional to 728,928.80, 1,093,393.20 and 447,533.60 is: 671,300.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,928.80 : 1,093,393.20 = 447,533.60 : x
  2. Step 2: Convert to fraction form
    728,928.80/1,093,393.20 = 447,533.60/x
  3. Step 3: Cross multiply
    728,928.80x = 1,093,393.20 × 447,533.60
  4. Step 4: Simplify right side
    728,928.80x = 489,330,195,011.52
  5. Step 5: Solve for x
    x = 489,330,195,011.52/728,928.80
  6. Step 6: Final answer
    x = 671,300.40

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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.