Home / 1,389,724.49-1,917,547.15-873,179.12

Finding the Fourth Proportional to 1,389,724.49, 1,917,547.15 and 873,179.12

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Solution

The fourth proportional to 1,389,724.49, 1,917,547.15 and 873,179.12 is: 1,204,815.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,724.49 : 1,917,547.15 = 873,179.12 : x
  2. Step 2: Convert to fraction form
    1,389,724.49/1,917,547.15 = 873,179.12/x
  3. Step 3: Cross multiply
    1,389,724.49x = 1,917,547.15 × 873,179.12
  4. Step 4: Simplify right side
    1,389,724.49x = 1,674,362,132,995.51
  5. Step 5: Solve for x
    x = 1,674,362,132,995.51/1,389,724.49
  6. Step 6: Final answer
    x = 1,204,815.88

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.