Home / 779,861.76-1,169,792.66-281,225.76

Finding the Fourth Proportional to 779,861.76, 1,169,792.66 and 281,225.76

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Solution

The fourth proportional to 779,861.76, 1,169,792.66 and 281,225.76 is: 421,838.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,861.76 : 1,169,792.66 = 281,225.76 : x
  2. Step 2: Convert to fraction form
    779,861.76/1,169,792.66 = 281,225.76/x
  3. Step 3: Cross multiply
    779,861.76x = 1,169,792.66 × 281,225.76
  4. Step 4: Simplify right side
    779,861.76x = 328,975,829,850.92
  5. Step 5: Solve for x
    x = 328,975,829,850.92/779,861.76
  6. Step 6: Final answer
    x = 421,838.65

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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.