Home / 1,428,048.51-2,141,023-680,619.39

Finding the Fourth Proportional to 1,428,048.51, 2,141,023 and 680,619.39

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Solution

The fourth proportional to 1,428,048.51, 2,141,023 and 680,619.39 is: 1,020,428.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,048.51 : 2,141,023 = 680,619.39 : x
  2. Step 2: Convert to fraction form
    1,428,048.51/2,141,023 = 680,619.39/x
  3. Step 3: Cross multiply
    1,428,048.51x = 2,141,023 × 680,619.39
  4. Step 4: Simplify right side
    1,428,048.51x = 1,457,221,768,235.97
  5. Step 5: Solve for x
    x = 1,457,221,768,235.97/1,428,048.51
  6. Step 6: Final answer
    x = 1,020,428.76

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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.