Home / 874,169.96-1,311,488.28-313,261.16

Finding the Fourth Proportional to 874,169.96, 1,311,488.28 and 313,261.16

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Solution

The fourth proportional to 874,169.96, 1,311,488.28 and 313,261.16 is: 469,975.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,169.96 : 1,311,488.28 = 313,261.16 : x
  2. Step 2: Convert to fraction form
    874,169.96/1,311,488.28 = 313,261.16/x
  3. Step 3: Cross multiply
    874,169.96x = 1,311,488.28 × 313,261.16
  4. Step 4: Simplify right side
    874,169.96x = 410,838,333,361.76
  5. Step 5: Solve for x
    x = 410,838,333,361.76/874,169.96
  6. Step 6: Final answer
    x = 469,975.35

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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.