Home / 858,321.36-1,287,050.04-297,205.20

Finding the Fourth Proportional to 858,321.36, 1,287,050.04 and 297,205.20

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Solution

The fourth proportional to 858,321.36, 1,287,050.04 and 297,205.20 is: 445,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,321.36 : 1,287,050.04 = 297,205.20 : x
  2. Step 2: Convert to fraction form
    858,321.36/1,287,050.04 = 297,205.20/x
  3. Step 3: Cross multiply
    858,321.36x = 1,287,050.04 × 297,205.20
  4. Step 4: Simplify right side
    858,321.36x = 382,517,964,548.21
  5. Step 5: Solve for x
    x = 382,517,964,548.21/858,321.36
  6. Step 6: Final answer
    x = 445,658.21

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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.