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Finding the Fourth Proportional to 571,390.16, 856,560.36 and 305,334.32

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Solution

The fourth proportional to 571,390.16, 856,560.36 and 305,334.32 is: 457,721.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,390.16 : 856,560.36 = 305,334.32 : x
  2. Step 2: Convert to fraction form
    571,390.16/856,560.36 = 305,334.32/x
  3. Step 3: Cross multiply
    571,390.16x = 856,560.36 × 305,334.32
  4. Step 4: Simplify right side
    571,390.16x = 261,537,275,059.56
  5. Step 5: Solve for x
    x = 261,537,275,059.56/571,390.16
  6. Step 6: Final answer
    x = 457,721.00

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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.