Home / 1,293,116.81-1,784,556.55-720,156.98

Finding the Fourth Proportional to 1,293,116.81, 1,784,556.55 and 720,156.98

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Solution

The fourth proportional to 1,293,116.81, 1,784,556.55 and 720,156.98 is: 993,847.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,116.81 : 1,784,556.55 = 720,156.98 : x
  2. Step 2: Convert to fraction form
    1,293,116.81/1,784,556.55 = 720,156.98/x
  3. Step 3: Cross multiply
    1,293,116.81x = 1,784,556.55 × 720,156.98
  4. Step 4: Simplify right side
    1,293,116.81x = 1,285,160,855,687.22
  5. Step 5: Solve for x
    x = 1,285,160,855,687.22/1,293,116.81
  6. Step 6: Final answer
    x = 993,847.46

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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.