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Finding the Fourth Proportional to 647,925.21, 894,314.63 and 376,080.68

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Solution

The fourth proportional to 647,925.21, 894,314.63 and 376,080.68 is: 519,094.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,925.21 : 894,314.63 = 376,080.68 : x
  2. Step 2: Convert to fraction form
    647,925.21/894,314.63 = 376,080.68/x
  3. Step 3: Cross multiply
    647,925.21x = 894,314.63 × 376,080.68
  4. Step 4: Simplify right side
    647,925.21x = 336,334,457,560.24
  5. Step 5: Solve for x
    x = 336,334,457,560.24/647,925.21
  6. Step 6: Final answer
    x = 519,094.57

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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.