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Finding the Fourth Proportional to 454,039.38, 626,274.36 and 283,978.26

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Solution

The fourth proportional to 454,039.38, 626,274.36 and 283,978.26 is: 391,702.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,039.38 : 626,274.36 = 283,978.26 : x
  2. Step 2: Convert to fraction form
    454,039.38/626,274.36 = 283,978.26/x
  3. Step 3: Cross multiply
    454,039.38x = 626,274.36 × 283,978.26
  4. Step 4: Simplify right side
    454,039.38x = 177,848,303,035.41
  5. Step 5: Solve for x
    x = 177,848,303,035.41/454,039.38
  6. Step 6: Final answer
    x = 391,702.37

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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.