Home / 1,277,078.20-1,762,379.81-704,138.74

Finding the Fourth Proportional to 1,277,078.20, 1,762,379.81 and 704,138.74

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Solution

The fourth proportional to 1,277,078.20, 1,762,379.81 and 704,138.74 is: 971,718.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,078.20 : 1,762,379.81 = 704,138.74 : x
  2. Step 2: Convert to fraction form
    1,277,078.20/1,762,379.81 = 704,138.74/x
  3. Step 3: Cross multiply
    1,277,078.20x = 1,762,379.81 × 704,138.74
  4. Step 4: Simplify right side
    1,277,078.20x = 1,240,959,893,528.72
  5. Step 5: Solve for x
    x = 1,240,959,893,528.72/1,277,078.20
  6. Step 6: Final answer
    x = 971,718.02

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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.