Home / 987,976.16-1,482,089.79-313,816.94

Finding the Fourth Proportional to 987,976.16, 1,482,089.79 and 313,816.94

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Solution

The fourth proportional to 987,976.16, 1,482,089.79 and 313,816.94 is: 470,765.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,976.16 : 1,482,089.79 = 313,816.94 : x
  2. Step 2: Convert to fraction form
    987,976.16/1,482,089.79 = 313,816.94/x
  3. Step 3: Cross multiply
    987,976.16x = 1,482,089.79 × 313,816.94
  4. Step 4: Simplify right side
    987,976.16x = 465,104,882,703.04
  5. Step 5: Solve for x
    x = 465,104,882,703.04/987,976.16
  6. Step 6: Final answer
    x = 470,765.29

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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.