Home / 1,340,586.40-2,009,713.20-807,541.60

Finding the Fourth Proportional to 1,340,586.40, 2,009,713.20 and 807,541.60

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Solution

The fourth proportional to 1,340,586.40, 2,009,713.20 and 807,541.60 is: 1,210,609.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,586.40 : 2,009,713.20 = 807,541.60 : x
  2. Step 2: Convert to fraction form
    1,340,586.40/2,009,713.20 = 807,541.60/x
  3. Step 3: Cross multiply
    1,340,586.40x = 2,009,713.20 × 807,541.60
  4. Step 4: Simplify right side
    1,340,586.40x = 1,622,927,013,069.12
  5. Step 5: Solve for x
    x = 1,622,927,013,069.12/1,340,586.40
  6. Step 6: Final answer
    x = 1,210,609.78

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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.