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Finding the Fourth Proportional to 476,650.79, 657,503.48 and 285,553.46

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Solution

The fourth proportional to 476,650.79, 657,503.48 and 285,553.46 is: 393,899.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,650.79 : 657,503.48 = 285,553.46 : x
  2. Step 2: Convert to fraction form
    476,650.79/657,503.48 = 285,553.46/x
  3. Step 3: Cross multiply
    476,650.79x = 657,503.48 × 285,553.46
  4. Step 4: Simplify right side
    476,650.79x = 187,752,390,388.52
  5. Step 5: Solve for x
    x = 187,752,390,388.52/476,650.79
  6. Step 6: Final answer
    x = 393,899.26

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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.