Home / 2,878,609-3,972,830.34-1,671,385

Finding the Fourth Proportional to 2,878,609, 3,972,830.34 and 1,671,385

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Solution

The fourth proportional to 2,878,609, 3,972,830.34 and 1,671,385 is: 2,306,714.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,878,609 : 3,972,830.34 = 1,671,385 : x
  2. Step 2: Convert to fraction form
    2,878,609/3,972,830.34 = 1,671,385/x
  3. Step 3: Cross multiply
    2,878,609x = 3,972,830.34 × 1,671,385
  4. Step 4: Simplify right side
    2,878,609x = 6,640,129,037,820.90
  5. Step 5: Solve for x
    x = 6,640,129,037,820.90/2,878,609
  6. Step 6: Final answer
    x = 2,306,714.47

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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.