Home / 1,586,459.40-2,378,814.30-638,759.40

Finding the Fourth Proportional to 1,586,459.40, 2,378,814.30 and 638,759.40

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Solution

The fourth proportional to 1,586,459.40, 2,378,814.30 and 638,759.40 is: 957,786.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,586,459.40 : 2,378,814.30 = 638,759.40 : x
  2. Step 2: Convert to fraction form
    1,586,459.40/2,378,814.30 = 638,759.40/x
  3. Step 3: Cross multiply
    1,586,459.40x = 2,378,814.30 × 638,759.40
  4. Step 4: Simplify right side
    1,586,459.40x = 1,519,489,994,979.42
  5. Step 5: Solve for x
    x = 1,519,489,994,979.42/1,586,459.40
  6. Step 6: Final answer
    x = 957,786.88

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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.