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Finding the Fourth Proportional to 647,418.08, 893,484.24 and 375,578.84

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Solution

The fourth proportional to 647,418.08, 893,484.24 and 375,578.84 is: 518,326.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,418.08 : 893,484.24 = 375,578.84 : x
  2. Step 2: Convert to fraction form
    647,418.08/893,484.24 = 375,578.84/x
  3. Step 3: Cross multiply
    647,418.08x = 893,484.24 × 375,578.84
  4. Step 4: Simplify right side
    647,418.08x = 335,573,774,417.48
  5. Step 5: Solve for x
    x = 335,573,774,417.48/647,418.08
  6. Step 6: Final answer
    x = 518,326.23

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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.