Home / 1,217,135.70-1,679,239.31-700,878.47

Finding the Fourth Proportional to 1,217,135.70, 1,679,239.31 and 700,878.47

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Solution

The fourth proportional to 1,217,135.70, 1,679,239.31 and 700,878.47 is: 966,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,135.70 : 1,679,239.31 = 700,878.47 : x
  2. Step 2: Convert to fraction form
    1,217,135.70/1,679,239.31 = 700,878.47/x
  3. Step 3: Cross multiply
    1,217,135.70x = 1,679,239.31 × 700,878.47
  4. Step 4: Simplify right side
    1,217,135.70x = 1,176,942,666,456.07
  5. Step 5: Solve for x
    x = 1,176,942,666,456.07/1,217,135.70
  6. Step 6: Final answer
    x = 966,977.36

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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.