Home / 1,099,313.80-1,648,797.90-389,240.20

Finding the Fourth Proportional to 1,099,313.80, 1,648,797.90 and 389,240.20

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Solution

The fourth proportional to 1,099,313.80, 1,648,797.90 and 389,240.20 is: 583,799.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,313.80 : 1,648,797.90 = 389,240.20 : x
  2. Step 2: Convert to fraction form
    1,099,313.80/1,648,797.90 = 389,240.20/x
  3. Step 3: Cross multiply
    1,099,313.80x = 1,648,797.90 × 389,240.20
  4. Step 4: Simplify right side
    1,099,313.80x = 641,778,424,355.58
  5. Step 5: Solve for x
    x = 641,778,424,355.58/1,099,313.80
  6. Step 6: Final answer
    x = 583,799.12

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Double scale
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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.