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Finding the Fourth Proportional to 655,842.36, 905,480.33 and 535,271.23

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Solution

The fourth proportional to 655,842.36, 905,480.33 and 535,271.23 is: 739,015.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,842.36 : 905,480.33 = 535,271.23 : x
  2. Step 2: Convert to fraction form
    655,842.36/905,480.33 = 535,271.23/x
  3. Step 3: Cross multiply
    655,842.36x = 905,480.33 × 535,271.23
  4. Step 4: Simplify right side
    655,842.36x = 484,677,565,039.85
  5. Step 5: Solve for x
    x = 484,677,565,039.85/655,842.36
  6. Step 6: Final answer
    x = 739,015.34

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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.