Home / 1,099,396.60-1,648,511.70-389,447.80

Finding the Fourth Proportional to 1,099,396.60, 1,648,511.70 and 389,447.80

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Solution

The fourth proportional to 1,099,396.60, 1,648,511.70 and 389,447.80 is: 583,965.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,396.60 : 1,648,511.70 = 389,447.80 : x
  2. Step 2: Convert to fraction form
    1,099,396.60/1,648,511.70 = 389,447.80/x
  3. Step 3: Cross multiply
    1,099,396.60x = 1,648,511.70 × 389,447.80
  4. Step 4: Simplify right side
    1,099,396.60x = 642,009,254,839.26
  5. Step 5: Solve for x
    x = 642,009,254,839.26/1,099,396.60
  6. Step 6: Final answer
    x = 583,965.11

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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.