Home / 728,501.72-1,092,668.52-195,980.90

Finding the Fourth Proportional to 728,501.72, 1,092,668.52 and 195,980.90

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Solution

The fourth proportional to 728,501.72, 1,092,668.52 and 195,980.90 is: 293,948.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,501.72 : 1,092,668.52 = 195,980.90 : x
  2. Step 2: Convert to fraction form
    728,501.72/1,092,668.52 = 195,980.90/x
  3. Step 3: Cross multiply
    728,501.72x = 1,092,668.52 × 195,980.90
  4. Step 4: Simplify right side
    728,501.72x = 214,142,159,951.27
  5. Step 5: Solve for x
    x = 214,142,159,951.27/728,501.72
  6. Step 6: Final answer
    x = 293,948.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.