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Finding the Fourth Proportional to 476,560.69, 657,655.54 and 258,769.64

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Solution

The fourth proportional to 476,560.69, 657,655.54 and 258,769.64 is: 357,103.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,560.69 : 657,655.54 = 258,769.64 : x
  2. Step 2: Convert to fraction form
    476,560.69/657,655.54 = 258,769.64/x
  3. Step 3: Cross multiply
    476,560.69x = 657,655.54 × 258,769.64
  4. Step 4: Simplify right side
    476,560.69x = 170,181,288,327.02
  5. Step 5: Solve for x
    x = 170,181,288,327.02/476,560.69
  6. Step 6: Final answer
    x = 357,103.08

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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.