Home / 840,946.86-1,261,545.12-272,137.32

Finding the Fourth Proportional to 840,946.86, 1,261,545.12 and 272,137.32

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Solution

The fourth proportional to 840,946.86, 1,261,545.12 and 272,137.32 is: 408,246.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,946.86 : 1,261,545.12 = 272,137.32 : x
  2. Step 2: Convert to fraction form
    840,946.86/1,261,545.12 = 272,137.32/x
  3. Step 3: Cross multiply
    840,946.86x = 1,261,545.12 × 272,137.32
  4. Step 4: Simplify right side
    840,946.86x = 343,313,508,015.88
  5. Step 5: Solve for x
    x = 343,313,508,015.88/840,946.86
  6. Step 6: Final answer
    x = 408,246.38

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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.