Home / 1,006,786.18-1,389,657.69-657,979.06

Finding the Fourth Proportional to 1,006,786.18, 1,389,657.69 and 657,979.06

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Solution

The fourth proportional to 1,006,786.18, 1,389,657.69 and 657,979.06 is: 908,202.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,006,786.18 : 1,389,657.69 = 657,979.06 : x
  2. Step 2: Convert to fraction form
    1,006,786.18/1,389,657.69 = 657,979.06/x
  3. Step 3: Cross multiply
    1,006,786.18x = 1,389,657.69 × 657,979.06
  4. Step 4: Simplify right side
    1,006,786.18x = 914,365,660,587.97
  5. Step 5: Solve for x
    x = 914,365,660,587.97/1,006,786.18
  6. Step 6: Final answer
    x = 908,202.44

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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.