Home / 621,037.10-932,102.40-368,001.20

Finding the Fourth Proportional to 621,037.10, 932,102.40 and 368,001.20

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Solution

The fourth proportional to 621,037.10, 932,102.40 and 368,001.20 is: 552,325.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,037.10 : 932,102.40 = 368,001.20 : x
  2. Step 2: Convert to fraction form
    621,037.10/932,102.40 = 368,001.20/x
  3. Step 3: Cross multiply
    621,037.10x = 932,102.40 × 368,001.20
  4. Step 4: Simplify right side
    621,037.10x = 343,014,801,722.88
  5. Step 5: Solve for x
    x = 343,014,801,722.88/621,037.10
  6. Step 6: Final answer
    x = 552,325.78

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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.