Home / 2,872,128.63-3,963,543.06-1,565,395.23

Finding the Fourth Proportional to 2,872,128.63, 3,963,543.06 and 1,565,395.23

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Solution

The fourth proportional to 2,872,128.63, 3,963,543.06 and 1,565,395.23 is: 2,160,248.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,872,128.63 : 3,963,543.06 = 1,565,395.23 : x
  2. Step 2: Convert to fraction form
    2,872,128.63/3,963,543.06 = 1,565,395.23/x
  3. Step 3: Cross multiply
    2,872,128.63x = 3,963,543.06 × 1,565,395.23
  4. Step 4: Simplify right side
    2,872,128.63x = 6,204,511,380,205.89
  5. Step 5: Solve for x
    x = 6,204,511,380,205.89/2,872,128.63
  6. Step 6: Final answer
    x = 2,160,248.44

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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.