Home / 721,146-1,079,504.64-453,654.06

Finding the Fourth Proportional to 721,146, 1,079,504.64 and 453,654.06

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Solution

The fourth proportional to 721,146, 1,079,504.64 and 453,654.06 is: 679,088.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,146 : 1,079,504.64 = 453,654.06 : x
  2. Step 2: Convert to fraction form
    721,146/1,079,504.64 = 453,654.06/x
  3. Step 3: Cross multiply
    721,146x = 1,079,504.64 × 453,654.06
  4. Step 4: Simplify right side
    721,146x = 489,721,662,724.84
  5. Step 5: Solve for x
    x = 489,721,662,724.84/721,146
  6. Step 6: Final answer
    x = 679,088.09

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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.