Home / 1,555,690-2,146,852.20-876,650.80

Finding the Fourth Proportional to 1,555,690, 2,146,852.20 and 876,650.80

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Solution

The fourth proportional to 1,555,690, 2,146,852.20 and 876,650.80 is: 1,209,778.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,555,690 : 2,146,852.20 = 876,650.80 : x
  2. Step 2: Convert to fraction form
    1,555,690/2,146,852.20 = 876,650.80/x
  3. Step 3: Cross multiply
    1,555,690x = 2,146,852.20 × 876,650.80
  4. Step 4: Simplify right side
    1,555,690x = 1,882,039,698,611.76
  5. Step 5: Solve for x
    x = 1,882,039,698,611.76/1,555,690
  6. Step 6: Final answer
    x = 1,209,778.10

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1.5x scale

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.