Home / 527,567.47-728,043.38-285,850.23

Finding the Fourth Proportional to 527,567.47, 728,043.38 and 285,850.23

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Solution

The fourth proportional to 527,567.47, 728,043.38 and 285,850.23 is: 394,473.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,567.47 : 728,043.38 = 285,850.23 : x
  2. Step 2: Convert to fraction form
    527,567.47/728,043.38 = 285,850.23/x
  3. Step 3: Cross multiply
    527,567.47x = 728,043.38 × 285,850.23
  4. Step 4: Simplify right side
    527,567.47x = 208,111,369,443.09
  5. Step 5: Solve for x
    x = 208,111,369,443.09/527,567.47
  6. Step 6: Final answer
    x = 394,473.47

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Double scale
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Similar ratio
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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.