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Finding the Fourth Proportional to 647,796.76, 893,718.52 and 375,712.08

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Solution

The fourth proportional to 647,796.76, 893,718.52 and 375,712.08 is: 518,342.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,796.76 : 893,718.52 = 375,712.08 : x
  2. Step 2: Convert to fraction form
    647,796.76/893,718.52 = 375,712.08/x
  3. Step 3: Cross multiply
    647,796.76x = 893,718.52 × 375,712.08
  4. Step 4: Simplify right side
    647,796.76x = 335,780,844,083.72
  5. Step 5: Solve for x
    x = 335,780,844,083.72/647,796.76
  6. Step 6: Final answer
    x = 518,342.89

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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.