Home / 476,655.54-657,510.03-285,558.21

Finding the Fourth Proportional to 476,655.54, 657,510.03 and 285,558.21

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Solution

The fourth proportional to 476,655.54, 657,510.03 and 285,558.21 is: 393,905.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,655.54 : 657,510.03 = 285,558.21 : x
  2. Step 2: Convert to fraction form
    476,655.54/657,510.03 = 285,558.21/x
  3. Step 3: Cross multiply
    476,655.54x = 657,510.03 × 285,558.21
  4. Step 4: Simplify right side
    476,655.54x = 187,757,387,223.85
  5. Step 5: Solve for x
    x = 187,757,387,223.85/476,655.54
  6. Step 6: Final answer
    x = 393,905.81

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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.