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Finding the Fourth Proportional to 647,141.41, 893,058.15 and 375,370.21

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Solution

The fourth proportional to 647,141.41, 893,058.15 and 375,370.21 is: 518,012.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,141.41 : 893,058.15 = 375,370.21 : x
  2. Step 2: Convert to fraction form
    647,141.41/893,058.15 = 375,370.21/x
  3. Step 3: Cross multiply
    647,141.41x = 893,058.15 × 375,370.21
  4. Step 4: Simplify right side
    647,141.41x = 335,227,425,307.71
  5. Step 5: Solve for x
    x = 335,227,425,307.71/647,141.41
  6. Step 6: Final answer
    x = 518,012.63

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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.