Home / 1,220,808.78-1,684,372.50-961,883.01

Finding the Fourth Proportional to 1,220,808.78, 1,684,372.50 and 961,883.01

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Solution

The fourth proportional to 1,220,808.78, 1,684,372.50 and 961,883.01 is: 1,327,127.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,808.78 : 1,684,372.50 = 961,883.01 : x
  2. Step 2: Convert to fraction form
    1,220,808.78/1,684,372.50 = 961,883.01/x
  3. Step 3: Cross multiply
    1,220,808.78x = 1,684,372.50 × 961,883.01
  4. Step 4: Simplify right side
    1,220,808.78x = 1,620,169,290,261.23
  5. Step 5: Solve for x
    x = 1,620,169,290,261.23/1,220,808.78
  6. Step 6: Final answer
    x = 1,327,127.82

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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.