Home / 1,293,129.90-1,784,574.63-720,170.10

Finding the Fourth Proportional to 1,293,129.90, 1,784,574.63 and 720,170.10

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Solution

The fourth proportional to 1,293,129.90, 1,784,574.63 and 720,170.10 is: 993,865.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,129.90 : 1,784,574.63 = 720,170.10 : x
  2. Step 2: Convert to fraction form
    1,293,129.90/1,784,574.63 = 720,170.10/x
  3. Step 3: Cross multiply
    1,293,129.90x = 1,784,574.63 × 720,170.10
  4. Step 4: Simplify right side
    1,293,129.90x = 1,285,197,289,744.56
  5. Step 5: Solve for x
    x = 1,285,197,289,744.56/1,293,129.90
  6. Step 6: Final answer
    x = 993,865.57

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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.