Home / 957,172.16-1,320,897.96-521,586.56

Finding the Fourth Proportional to 957,172.16, 1,320,897.96 and 521,586.56

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Solution

The fourth proportional to 957,172.16, 1,320,897.96 and 521,586.56 is: 719,789.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    957,172.16 : 1,320,897.96 = 521,586.56 : x
  2. Step 2: Convert to fraction form
    957,172.16/1,320,897.96 = 521,586.56/x
  3. Step 3: Cross multiply
    957,172.16x = 1,320,897.96 × 521,586.56
  4. Step 4: Simplify right side
    957,172.16x = 688,962,623,067.42
  5. Step 5: Solve for x
    x = 688,962,623,067.42/957,172.16
  6. Step 6: Final answer
    x = 719,789.66

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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.