Home / 655,837.28-905,043.30-357,473.66

Finding the Fourth Proportional to 655,837.28, 905,043.30 and 357,473.66

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Solution

The fourth proportional to 655,837.28, 905,043.30 and 357,473.66 is: 493,307.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,837.28 : 905,043.30 = 357,473.66 : x
  2. Step 2: Convert to fraction form
    655,837.28/905,043.30 = 357,473.66/x
  3. Step 3: Cross multiply
    655,837.28x = 905,043.30 × 357,473.66
  4. Step 4: Simplify right side
    655,837.28x = 323,529,143,172.09
  5. Step 5: Solve for x
    x = 323,529,143,172.09/655,837.28
  6. Step 6: Final answer
    x = 493,307.03

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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.