Home / 1,384,138.80-2,076,208.20-911,746.80

Finding the Fourth Proportional to 1,384,138.80, 2,076,208.20 and 911,746.80

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Solution

The fourth proportional to 1,384,138.80, 2,076,208.20 and 911,746.80 is: 1,367,620.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,384,138.80 : 2,076,208.20 = 911,746.80 : x
  2. Step 2: Convert to fraction form
    1,384,138.80/2,076,208.20 = 911,746.80/x
  3. Step 3: Cross multiply
    1,384,138.80x = 2,076,208.20 × 911,746.80
  4. Step 4: Simplify right side
    1,384,138.80x = 1,892,976,182,483.76
  5. Step 5: Solve for x
    x = 1,892,976,182,483.76/1,384,138.80
  6. Step 6: Final answer
    x = 1,367,620.20

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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.