Home / 1,100,519.80-1,648,811.40-679,303.60

Finding the Fourth Proportional to 1,100,519.80, 1,648,811.40 and 679,303.60

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Solution

The fourth proportional to 1,100,519.80, 1,648,811.40 and 679,303.60 is: 1,017,740.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,100,519.80 : 1,648,811.40 = 679,303.60 : x
  2. Step 2: Convert to fraction form
    1,100,519.80/1,648,811.40 = 679,303.60/x
  3. Step 3: Cross multiply
    1,100,519.80x = 1,648,811.40 × 679,303.60
  4. Step 4: Simplify right side
    1,100,519.80x = 1,120,043,519,741.04
  5. Step 5: Solve for x
    x = 1,120,043,519,741.04/1,100,519.80
  6. Step 6: Final answer
    x = 1,017,740.45

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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.