Home / 2,157,345.28-3,235,011.90-640,471.24

Finding the Fourth Proportional to 2,157,345.28, 3,235,011.90 and 640,471.24

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Solution

The fourth proportional to 2,157,345.28, 3,235,011.90 and 640,471.24 is: 960,408.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,157,345.28 : 3,235,011.90 = 640,471.24 : x
  2. Step 2: Convert to fraction form
    2,157,345.28/3,235,011.90 = 640,471.24/x
  3. Step 3: Cross multiply
    2,157,345.28x = 3,235,011.90 × 640,471.24
  4. Step 4: Simplify right side
    2,157,345.28x = 2,071,932,083,007.76
  5. Step 5: Solve for x
    x = 2,071,932,083,007.76/2,157,345.28
  6. Step 6: Final answer
    x = 960,408.19

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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.