Home / 2,156,720.08-3,235,539.40-640,407.36

Finding the Fourth Proportional to 2,156,720.08, 3,235,539.40 and 640,407.36

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Solution

The fourth proportional to 2,156,720.08, 3,235,539.40 and 640,407.36 is: 960,747.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,156,720.08 : 3,235,539.40 = 640,407.36 : x
  2. Step 2: Convert to fraction form
    2,156,720.08/3,235,539.40 = 640,407.36/x
  3. Step 3: Cross multiply
    2,156,720.08x = 3,235,539.40 × 640,407.36
  4. Step 4: Simplify right side
    2,156,720.08x = 2,072,063,245,329.98
  5. Step 5: Solve for x
    x = 2,072,063,245,329.98/2,156,720.08
  6. Step 6: Final answer
    x = 960,747.42

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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.