Home / 671,719.95-1,007,712.81-191,952.09

Finding the Fourth Proportional to 671,719.95, 1,007,712.81 and 191,952.09

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Solution

The fourth proportional to 671,719.95, 1,007,712.81 and 191,952.09 is: 287,966.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,719.95 : 1,007,712.81 = 191,952.09 : x
  2. Step 2: Convert to fraction form
    671,719.95/1,007,712.81 = 191,952.09/x
  3. Step 3: Cross multiply
    671,719.95x = 1,007,712.81 × 191,952.09
  4. Step 4: Simplify right side
    671,719.95x = 193,432,579,999.27
  5. Step 5: Solve for x
    x = 193,432,579,999.27/671,719.95
  6. Step 6: Final answer
    x = 287,966.11

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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.