Home / 1,091,822.40-1,636,178.40-805,276.80

Finding the Fourth Proportional to 1,091,822.40, 1,636,178.40 and 805,276.80

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Solution

The fourth proportional to 1,091,822.40, 1,636,178.40 and 805,276.80 is: 1,206,768.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,091,822.40 : 1,636,178.40 = 805,276.80 : x
  2. Step 2: Convert to fraction form
    1,091,822.40/1,636,178.40 = 805,276.80/x
  3. Step 3: Cross multiply
    1,091,822.40x = 1,636,178.40 × 805,276.80
  4. Step 4: Simplify right side
    1,091,822.40x = 1,317,576,506,181.12
  5. Step 5: Solve for x
    x = 1,317,576,506,181.12/1,091,822.40
  6. Step 6: Final answer
    x = 1,206,768.16

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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.