Home / 718,982.40-1,078,084.80-298,300.80

Finding the Fourth Proportional to 718,982.40, 1,078,084.80 and 298,300.80

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Solution

The fourth proportional to 718,982.40, 1,078,084.80 and 298,300.80 is: 447,289.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,982.40 : 1,078,084.80 = 298,300.80 : x
  2. Step 2: Convert to fraction form
    718,982.40/1,078,084.80 = 298,300.80/x
  3. Step 3: Cross multiply
    718,982.40x = 1,078,084.80 × 298,300.80
  4. Step 4: Simplify right side
    718,982.40x = 321,593,558,307.84
  5. Step 5: Solve for x
    x = 321,593,558,307.84/718,982.40
  6. Step 6: Final answer
    x = 447,289.89

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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.