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Finding the Fourth Proportional to 1,147,692, 1,721,814.48 and 359,724

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Solution

The fourth proportional to 1,147,692, 1,721,814.48 and 359,724 is: 539,672.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,692 : 1,721,814.48 = 359,724 : x
  2. Step 2: Convert to fraction form
    1,147,692/1,721,814.48 = 359,724/x
  3. Step 3: Cross multiply
    1,147,692x = 1,721,814.48 × 359,724
  4. Step 4: Simplify right side
    1,147,692x = 619,377,992,003.52
  5. Step 5: Solve for x
    x = 619,377,992,003.52/1,147,692
  6. Step 6: Final answer
    x = 539,672.66

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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.