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Finding the Fourth Proportional to 656,779.57, 985,210.88 and 277,629.64

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Solution

The fourth proportional to 656,779.57, 985,210.88 and 277,629.64 is: 416,462.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,779.57 : 985,210.88 = 277,629.64 : x
  2. Step 2: Convert to fraction form
    656,779.57/985,210.88 = 277,629.64/x
  3. Step 3: Cross multiply
    656,779.57x = 985,210.88 × 277,629.64
  4. Step 4: Simplify right side
    656,779.57x = 273,523,745,190.79
  5. Step 5: Solve for x
    x = 273,523,745,190.79/656,779.57
  6. Step 6: Final answer
    x = 416,462.02

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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.