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Finding the Fourth Proportional to 540,397.26, 745,361.46 and 379,288.26

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Solution

The fourth proportional to 540,397.26, 745,361.46 and 379,288.26 is: 523,146.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,397.26 : 745,361.46 = 379,288.26 : x
  2. Step 2: Convert to fraction form
    540,397.26/745,361.46 = 379,288.26/x
  3. Step 3: Cross multiply
    540,397.26x = 745,361.46 × 379,288.26
  4. Step 4: Simplify right side
    540,397.26x = 282,706,851,234.46
  5. Step 5: Solve for x
    x = 282,706,851,234.46/540,397.26
  6. Step 6: Final answer
    x = 523,146.34

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1.5x scale

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.