Home / 902,408.72-1,245,324.04-500,000.72

Finding the Fourth Proportional to 902,408.72, 1,245,324.04 and 500,000.72

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Solution

The fourth proportional to 902,408.72, 1,245,324.04 and 500,000.72 is: 690,001.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    902,408.72 : 1,245,324.04 = 500,000.72 : x
  2. Step 2: Convert to fraction form
    902,408.72/1,245,324.04 = 500,000.72/x
  3. Step 3: Cross multiply
    902,408.72x = 1,245,324.04 × 500,000.72
  4. Step 4: Simplify right side
    902,408.72x = 622,662,916,633.31
  5. Step 5: Solve for x
    x = 622,662,916,633.31/902,408.72
  6. Step 6: Final answer
    x = 690,001.00

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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.