Home / 986,097.87-1,479,368.48-312,219.45

Finding the Fourth Proportional to 986,097.87, 1,479,368.48 and 312,219.45

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Solution

The fourth proportional to 986,097.87, 1,479,368.48 and 312,219.45 is: 468,399.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,097.87 : 1,479,368.48 = 312,219.45 : x
  2. Step 2: Convert to fraction form
    986,097.87/1,479,368.48 = 312,219.45/x
  3. Step 3: Cross multiply
    986,097.87x = 1,479,368.48 × 312,219.45
  4. Step 4: Simplify right side
    986,097.87x = 461,887,611,611.84
  5. Step 5: Solve for x
    x = 461,887,611,611.84/986,097.87
  6. Step 6: Final answer
    x = 468,399.36

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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.