Home / 720,518.36-1,080,966.83-258,942.94

Finding the Fourth Proportional to 720,518.36, 1,080,966.83 and 258,942.94

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Solution

The fourth proportional to 720,518.36, 1,080,966.83 and 258,942.94 is: 388,482.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,518.36 : 1,080,966.83 = 258,942.94 : x
  2. Step 2: Convert to fraction form
    720,518.36/1,080,966.83 = 258,942.94/x
  3. Step 3: Cross multiply
    720,518.36x = 1,080,966.83 × 258,942.94
  4. Step 4: Simplify right side
    720,518.36x = 279,908,729,002.68
  5. Step 5: Solve for x
    x = 279,908,729,002.68/720,518.36
  6. Step 6: Final answer
    x = 388,482.44

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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.