Home / 874,495.50-1,311,743.25-243,425.76

Finding the Fourth Proportional to 874,495.50, 1,311,743.25 and 243,425.76

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Solution

The fourth proportional to 874,495.50, 1,311,743.25 and 243,425.76 is: 365,138.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,495.50 : 1,311,743.25 = 243,425.76 : x
  2. Step 2: Convert to fraction form
    874,495.50/1,311,743.25 = 243,425.76/x
  3. Step 3: Cross multiply
    874,495.50x = 1,311,743.25 × 243,425.76
  4. Step 4: Simplify right side
    874,495.50x = 319,312,097,556.12
  5. Step 5: Solve for x
    x = 319,312,097,556.12/874,495.50
  6. Step 6: Final answer
    x = 365,138.64

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.