Home / 899,403.77-1,241,180.43-491,505.67

Finding the Fourth Proportional to 899,403.77, 1,241,180.43 and 491,505.67

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Solution

The fourth proportional to 899,403.77, 1,241,180.43 and 491,505.67 is: 678,279.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,403.77 : 1,241,180.43 = 491,505.67 : x
  2. Step 2: Convert to fraction form
    899,403.77/1,241,180.43 = 491,505.67/x
  3. Step 3: Cross multiply
    899,403.77x = 1,241,180.43 × 491,505.67
  4. Step 4: Simplify right side
    899,403.77x = 610,047,215,735.09
  5. Step 5: Solve for x
    x = 610,047,215,735.09/899,403.77
  6. Step 6: Final answer
    x = 678,279.58

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.