Home / 2,085,946.80-3,128,920.20-823,124.40

Finding the Fourth Proportional to 2,085,946.80, 3,128,920.20 and 823,124.40

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Solution

The fourth proportional to 2,085,946.80, 3,128,920.20 and 823,124.40 is: 1,234,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,085,946.80 : 3,128,920.20 = 823,124.40 : x
  2. Step 2: Convert to fraction form
    2,085,946.80/3,128,920.20 = 823,124.40/x
  3. Step 3: Cross multiply
    2,085,946.80x = 3,128,920.20 × 823,124.40
  4. Step 4: Simplify right side
    2,085,946.80x = 2,575,490,562,272.88
  5. Step 5: Solve for x
    x = 2,575,490,562,272.88/2,085,946.80
  6. Step 6: Final answer
    x = 1,234,686.60

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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.