Home / 1,260,806.56-1,739,852.40-687,812.56

Finding the Fourth Proportional to 1,260,806.56, 1,739,852.40 and 687,812.56

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Solution

The fourth proportional to 1,260,806.56, 1,739,852.40 and 687,812.56 is: 949,148.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,806.56 : 1,739,852.40 = 687,812.56 : x
  2. Step 2: Convert to fraction form
    1,260,806.56/1,739,852.40 = 687,812.56/x
  3. Step 3: Cross multiply
    1,260,806.56x = 1,739,852.40 × 687,812.56
  4. Step 4: Simplify right side
    1,260,806.56x = 1,196,692,333,266.14
  5. Step 5: Solve for x
    x = 1,196,692,333,266.14/1,260,806.56
  6. Step 6: Final answer
    x = 949,148.24

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.