Home / 1,242,742.89-1,714,968.86-698,878.53

Finding the Fourth Proportional to 1,242,742.89, 1,714,968.86 and 698,878.53

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Solution

The fourth proportional to 1,242,742.89, 1,714,968.86 and 698,878.53 is: 964,443.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,742.89 : 1,714,968.86 = 698,878.53 : x
  2. Step 2: Convert to fraction form
    1,242,742.89/1,714,968.86 = 698,878.53/x
  3. Step 3: Cross multiply
    1,242,742.89x = 1,714,968.86 × 698,878.53
  4. Step 4: Simplify right side
    1,242,742.89x = 1,198,554,912,378.18
  5. Step 5: Solve for x
    x = 1,198,554,912,378.18/1,242,742.89
  6. Step 6: Final answer
    x = 964,443.19

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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.