Home / 1,108,855.40-1,659,783.90-870,909.80

Finding the Fourth Proportional to 1,108,855.40, 1,659,783.90 and 870,909.80

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Solution

The fourth proportional to 1,108,855.40, 1,659,783.90 and 870,909.80 is: 1,303,616.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,108,855.40 : 1,659,783.90 = 870,909.80 : x
  2. Step 2: Convert to fraction form
    1,108,855.40/1,659,783.90 = 870,909.80/x
  3. Step 3: Cross multiply
    1,108,855.40x = 1,659,783.90 × 870,909.80
  4. Step 4: Simplify right side
    1,108,855.40x = 1,445,522,064,392.22
  5. Step 5: Solve for x
    x = 1,445,522,064,392.22/1,108,855.40
  6. Step 6: Final answer
    x = 1,303,616.38

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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.