Home / 527,127.36-727,391.06-309,313.54

Finding the Fourth Proportional to 527,127.36, 727,391.06 and 309,313.54

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Solution

The fourth proportional to 527,127.36, 727,391.06 and 309,313.54 is: 426,826.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,127.36 : 727,391.06 = 309,313.54 : x
  2. Step 2: Convert to fraction form
    527,127.36/727,391.06 = 309,313.54/x
  3. Step 3: Cross multiply
    527,127.36x = 727,391.06 × 309,313.54
  4. Step 4: Simplify right side
    527,127.36x = 224,991,903,732.95
  5. Step 5: Solve for x
    x = 224,991,903,732.95/527,127.36
  6. Step 6: Final answer
    x = 426,826.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.