Home / 957,166.51-1,320,872.84-521,587.70

Finding the Fourth Proportional to 957,166.51, 1,320,872.84 and 521,587.70

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Solution

The fourth proportional to 957,166.51, 1,320,872.84 and 521,587.70 is: 719,781.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,166.51 : 1,320,872.84 = 521,587.70 : x
  2. Step 2: Convert to fraction form
    957,166.51/1,320,872.84 = 521,587.70/x
  3. Step 3: Cross multiply
    957,166.51x = 1,320,872.84 × 521,587.70
  4. Step 4: Simplify right side
    957,166.51x = 688,951,019,123.07
  5. Step 5: Solve for x
    x = 688,951,019,123.07/957,166.51
  6. Step 6: Final answer
    x = 719,781.79

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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.