Home / 1,265,866.20-1,898,966.15-412,638.90

Finding the Fourth Proportional to 1,265,866.20, 1,898,966.15 and 412,638.90

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Solution

The fourth proportional to 1,265,866.20, 1,898,966.15 and 412,638.90 is: 619,012.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,265,866.20 : 1,898,966.15 = 412,638.90 : x
  2. Step 2: Convert to fraction form
    1,265,866.20/1,898,966.15 = 412,638.90/x
  3. Step 3: Cross multiply
    1,265,866.20x = 1,898,966.15 × 412,638.90
  4. Step 4: Simplify right side
    1,265,866.20x = 783,587,303,273.24
  5. Step 5: Solve for x
    x = 783,587,303,273.24/1,265,866.20
  6. Step 6: Final answer
    x = 619,012.74

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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.