Home / 1,230,911.40-1,846,511.10-389,548.20

Finding the Fourth Proportional to 1,230,911.40, 1,846,511.10 and 389,548.20

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Solution

The fourth proportional to 1,230,911.40, 1,846,511.10 and 389,548.20 is: 584,367.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,911.40 : 1,846,511.10 = 389,548.20 : x
  2. Step 2: Convert to fraction form
    1,230,911.40/1,846,511.10 = 389,548.20/x
  3. Step 3: Cross multiply
    1,230,911.40x = 1,846,511.10 × 389,548.20
  4. Step 4: Simplify right side
    1,230,911.40x = 719,305,075,285.02
  5. Step 5: Solve for x
    x = 719,305,075,285.02/1,230,911.40
  6. Step 6: Final answer
    x = 584,367.87

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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.