Home / 881,036.60-1,321,554.90-781,309.40

Finding the Fourth Proportional to 881,036.60, 1,321,554.90 and 781,309.40

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Solution

The fourth proportional to 881,036.60, 1,321,554.90 and 781,309.40 is: 1,171,964.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,036.60 : 1,321,554.90 = 781,309.40 : x
  2. Step 2: Convert to fraction form
    881,036.60/1,321,554.90 = 781,309.40/x
  3. Step 3: Cross multiply
    881,036.60x = 1,321,554.90 × 781,309.40
  4. Step 4: Simplify right side
    881,036.60x = 1,032,543,265,986.06
  5. Step 5: Solve for x
    x = 1,032,543,265,986.06/881,036.60
  6. Step 6: Final answer
    x = 1,171,964.10

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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.