Home / 1,259,866.80-1,889,800.20-811,094.40

Finding the Fourth Proportional to 1,259,866.80, 1,889,800.20 and 811,094.40

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Solution

The fourth proportional to 1,259,866.80, 1,889,800.20 and 811,094.40 is: 1,216,641.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,866.80 : 1,889,800.20 = 811,094.40 : x
  2. Step 2: Convert to fraction form
    1,259,866.80/1,889,800.20 = 811,094.40/x
  3. Step 3: Cross multiply
    1,259,866.80x = 1,889,800.20 × 811,094.40
  4. Step 4: Simplify right side
    1,259,866.80x = 1,532,806,359,338.88
  5. Step 5: Solve for x
    x = 1,532,806,359,338.88/1,259,866.80
  6. Step 6: Final answer
    x = 1,216,641.60

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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.