Home / 849,715.70-1,274,573.95-281,096.80

Finding the Fourth Proportional to 849,715.70, 1,274,573.95 and 281,096.80

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Solution

The fourth proportional to 849,715.70, 1,274,573.95 and 281,096.80 is: 421,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,715.70 : 1,274,573.95 = 281,096.80 : x
  2. Step 2: Convert to fraction form
    849,715.70/1,274,573.95 = 281,096.80/x
  3. Step 3: Cross multiply
    849,715.70x = 1,274,573.95 × 281,096.80
  4. Step 4: Simplify right side
    849,715.70x = 358,278,654,819.18
  5. Step 5: Solve for x
    x = 358,278,654,819.18/849,715.70
  6. Step 6: Final answer
    x = 421,645.33

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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.