Home / 987,361.56-1,480,891.06-313,355.50

Finding the Fourth Proportional to 987,361.56, 1,480,891.06 and 313,355.50

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Solution

The fourth proportional to 987,361.56, 1,480,891.06 and 313,355.50 is: 469,985.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,361.56 : 1,480,891.06 = 313,355.50 : x
  2. Step 2: Convert to fraction form
    987,361.56/1,480,891.06 = 313,355.50/x
  3. Step 3: Cross multiply
    987,361.56x = 1,480,891.06 × 313,355.50
  4. Step 4: Simplify right side
    987,361.56x = 464,045,358,551.83
  5. Step 5: Solve for x
    x = 464,045,358,551.83/987,361.56
  6. Step 6: Final answer
    x = 469,985.24

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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.