Home / 980,218.40-1,470,365.04-306,361.76

Finding the Fourth Proportional to 980,218.40, 1,470,365.04 and 306,361.76

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Solution

The fourth proportional to 980,218.40, 1,470,365.04 and 306,361.76 is: 459,554.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,218.40 : 1,470,365.04 = 306,361.76 : x
  2. Step 2: Convert to fraction form
    980,218.40/1,470,365.04 = 306,361.76/x
  3. Step 3: Cross multiply
    980,218.40x = 1,470,365.04 × 306,361.76
  4. Step 4: Simplify right side
    980,218.40x = 450,463,621,496.87
  5. Step 5: Solve for x
    x = 450,463,621,496.87/980,218.40
  6. Step 6: Final answer
    x = 459,554.34

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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.