Home / 1,008,029.56-1,389,166.80-721,051.40

Finding the Fourth Proportional to 1,008,029.56, 1,389,166.80 and 721,051.40

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Solution

The fourth proportional to 1,008,029.56, 1,389,166.80 and 721,051.40 is: 993,681.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,008,029.56 : 1,389,166.80 = 721,051.40 : x
  2. Step 2: Convert to fraction form
    1,008,029.56/1,389,166.80 = 721,051.40/x
  3. Step 3: Cross multiply
    1,008,029.56x = 1,389,166.80 × 721,051.40
  4. Step 4: Simplify right side
    1,008,029.56x = 1,001,660,665,973.52
  5. Step 5: Solve for x
    x = 1,001,660,665,973.52/1,008,029.56
  6. Step 6: Final answer
    x = 993,681.84

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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.