Home / 726,083,992.80-1,087,826,911.20-441,625,276.80

Finding the Fourth Proportional to 726,083,992.80, 1,087,826,911.20 and 441,625,276.80

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Solution

The fourth proportional to 726,083,992.80, 1,087,826,911.20 and 441,625,276.80 is: 661,647,778.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,083,992.80 : 1,087,826,911.20 = 441,625,276.80 : x
  2. Step 2: Convert to fraction form
    726,083,992.80/1,087,826,911.20 = 441,625,276.80/x
  3. Step 3: Cross multiply
    726,083,992.80x = 1,087,826,911.20 × 441,625,276.80
  4. Step 4: Simplify right side
    726,083,992.80x = 480,411,860,769,189,056
  5. Step 5: Solve for x
    x = 480,411,860,769,189,056/726,083,992.80
  6. Step 6: Final answer
    x = 661,647,778.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.