Home / 1,099,824.70-1,648,534.20-389,487.10

Finding the Fourth Proportional to 1,099,824.70, 1,648,534.20 and 389,487.10

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Solution

The fourth proportional to 1,099,824.70, 1,648,534.20 and 389,487.10 is: 583,804.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,824.70 : 1,648,534.20 = 389,487.10 : x
  2. Step 2: Convert to fraction form
    1,099,824.70/1,648,534.20 = 389,487.10/x
  3. Step 3: Cross multiply
    1,099,824.70x = 1,648,534.20 × 389,487.10
  4. Step 4: Simplify right side
    1,099,824.70x = 642,082,804,808.82
  5. Step 5: Solve for x
    x = 642,082,804,808.82/1,099,824.70
  6. Step 6: Final answer
    x = 583,804.68

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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.