Home / 1,211,579.40-1,817,109.90-537,659.40

Finding the Fourth Proportional to 1,211,579.40, 1,817,109.90 and 537,659.40

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Solution

The fourth proportional to 1,211,579.40, 1,817,109.90 and 537,659.40 is: 806,374.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,579.40 : 1,817,109.90 = 537,659.40 : x
  2. Step 2: Convert to fraction form
    1,211,579.40/1,817,109.90 = 537,659.40/x
  3. Step 3: Cross multiply
    1,211,579.40x = 1,817,109.90 × 537,659.40
  4. Step 4: Simplify right side
    1,211,579.40x = 976,986,218,568.06
  5. Step 5: Solve for x
    x = 976,986,218,568.06/1,211,579.40
  6. Step 6: Final answer
    x = 806,374.08

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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.