Home / 2,120,225.51-3,172,313-1,256,124.53

Finding the Fourth Proportional to 2,120,225.51, 3,172,313 and 1,256,124.53

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Solution

The fourth proportional to 2,120,225.51, 3,172,313 and 1,256,124.53 is: 1,879,432.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,120,225.51 : 3,172,313 = 1,256,124.53 : x
  2. Step 2: Convert to fraction form
    2,120,225.51/3,172,313 = 1,256,124.53/x
  3. Step 3: Cross multiply
    2,120,225.51x = 3,172,313 × 1,256,124.53
  4. Step 4: Simplify right side
    2,120,225.51x = 3,984,820,176,137.89
  5. Step 5: Solve for x
    x = 3,984,820,176,137.89/2,120,225.51
  6. Step 6: Final answer
    x = 1,879,432.24

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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.