Home / 671,720.95-1,007,714.31-191,953.09

Finding the Fourth Proportional to 671,720.95, 1,007,714.31 and 191,953.09

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Solution

The fourth proportional to 671,720.95, 1,007,714.31 and 191,953.09 is: 287,967.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,720.95 : 1,007,714.31 = 191,953.09 : x
  2. Step 2: Convert to fraction form
    671,720.95/1,007,714.31 = 191,953.09/x
  3. Step 3: Cross multiply
    671,720.95x = 1,007,714.31 × 191,953.09
  4. Step 4: Simplify right side
    671,720.95x = 193,433,875,641.72
  5. Step 5: Solve for x
    x = 193,433,875,641.72/671,720.95
  6. Step 6: Final answer
    x = 287,967.61

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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.