Home / 1,288,864.60-1,933,988.10-540,986.20

Finding the Fourth Proportional to 1,288,864.60, 1,933,988.10 and 540,986.20

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Solution

The fourth proportional to 1,288,864.60, 1,933,988.10 and 540,986.20 is: 811,769.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,864.60 : 1,933,988.10 = 540,986.20 : x
  2. Step 2: Convert to fraction form
    1,288,864.60/1,933,988.10 = 540,986.20/x
  3. Step 3: Cross multiply
    1,288,864.60x = 1,933,988.10 × 540,986.20
  4. Step 4: Simplify right side
    1,288,864.60x = 1,046,260,873,064.22
  5. Step 5: Solve for x
    x = 1,046,260,873,064.22/1,288,864.60
  6. Step 6: Final answer
    x = 811,769.42

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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.