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Finding the Fourth Proportional to 476,560.64, 657,655.50 and 258,769.65

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Solution

The fourth proportional to 476,560.64, 657,655.50 and 258,769.65 is: 357,103.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,560.64 : 657,655.50 = 258,769.65 : x
  2. Step 2: Convert to fraction form
    476,560.64/657,655.50 = 258,769.65/x
  3. Step 3: Cross multiply
    476,560.64x = 657,655.50 × 258,769.65
  4. Step 4: Simplify right side
    476,560.64x = 170,181,283,555.58
  5. Step 5: Solve for x
    x = 170,181,283,555.58/476,560.64
  6. Step 6: Final answer
    x = 357,103.11

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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.