Home / 1,289,344.96-1,931,359.48-755,246.72

Finding the Fourth Proportional to 1,289,344.96, 1,931,359.48 and 755,246.72

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Solution

The fourth proportional to 1,289,344.96, 1,931,359.48 and 755,246.72 is: 1,131,313.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,344.96 : 1,931,359.48 = 755,246.72 : x
  2. Step 2: Convert to fraction form
    1,289,344.96/1,931,359.48 = 755,246.72/x
  3. Step 3: Cross multiply
    1,289,344.96x = 1,931,359.48 × 755,246.72
  4. Step 4: Simplify right side
    1,289,344.96x = 1,458,652,912,410.91
  5. Step 5: Solve for x
    x = 1,458,652,912,410.91/1,289,344.96
  6. Step 6: Final answer
    x = 1,131,313.15

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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.