Home / 701,431.40-1,051,628.70-386,244.20

Finding the Fourth Proportional to 701,431.40, 1,051,628.70 and 386,244.20

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Solution

The fourth proportional to 701,431.40, 1,051,628.70 and 386,244.20 is: 579,080.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    701,431.40 : 1,051,628.70 = 386,244.20 : x
  2. Step 2: Convert to fraction form
    701,431.40/1,051,628.70 = 386,244.20/x
  3. Step 3: Cross multiply
    701,431.40x = 1,051,628.70 × 386,244.20
  4. Step 4: Simplify right side
    701,431.40x = 406,185,485,928.54
  5. Step 5: Solve for x
    x = 406,185,485,928.54/701,431.40
  6. Step 6: Final answer
    x = 579,080.84

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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.