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Finding the Fourth Proportional to 647,576.06, 893,419.96 and 375,493.82

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Solution

The fourth proportional to 647,576.06, 893,419.96 and 375,493.82 is: 518,045.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,576.06 : 893,419.96 = 375,493.82 : x
  2. Step 2: Convert to fraction form
    647,576.06/893,419.96 = 375,493.82/x
  3. Step 3: Cross multiply
    647,576.06x = 893,419.96 × 375,493.82
  4. Step 4: Simplify right side
    647,576.06x = 335,473,671,767.18
  5. Step 5: Solve for x
    x = 335,473,671,767.18/647,576.06
  6. Step 6: Final answer
    x = 518,045.20

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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.