Home / 776,146.51-1,164,220.06-349,183.72

Finding the Fourth Proportional to 776,146.51, 1,164,220.06 and 349,183.72

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Solution

The fourth proportional to 776,146.51, 1,164,220.06 and 349,183.72 is: 523,775.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,146.51 : 1,164,220.06 = 349,183.72 : x
  2. Step 2: Convert to fraction form
    776,146.51/1,164,220.06 = 349,183.72/x
  3. Step 3: Cross multiply
    776,146.51x = 1,164,220.06 × 349,183.72
  4. Step 4: Simplify right side
    776,146.51x = 406,526,688,975.35
  5. Step 5: Solve for x
    x = 406,526,688,975.35/776,146.51
  6. Step 6: Final answer
    x = 523,775.71

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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.