Home / 476,513.49-657,610.08-285,522.78

Finding the Fourth Proportional to 476,513.49, 657,610.08 and 285,522.78

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Solution

The fourth proportional to 476,513.49, 657,610.08 and 285,522.78 is: 394,034.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,513.49 : 657,610.08 = 285,522.78 : x
  2. Step 2: Convert to fraction form
    476,513.49/657,610.08 = 285,522.78/x
  3. Step 3: Cross multiply
    476,513.49x = 657,610.08 × 285,522.78
  4. Step 4: Simplify right side
    476,513.49x = 187,762,658,197.62
  5. Step 5: Solve for x
    x = 187,762,658,197.62/476,513.49
  6. Step 6: Final answer
    x = 394,034.30

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1.5x scale

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.