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Finding the Fourth Proportional to 647,894.84, 893,896.38 and 375,868.28

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Solution

The fourth proportional to 647,894.84, 893,896.38 and 375,868.28 is: 518,583.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,894.84 : 893,896.38 = 375,868.28 : x
  2. Step 2: Convert to fraction form
    647,894.84/893,896.38 = 375,868.28/x
  3. Step 3: Cross multiply
    647,894.84x = 893,896.38 × 375,868.28
  4. Step 4: Simplify right side
    647,894.84x = 335,987,294,848.83
  5. Step 5: Solve for x
    x = 335,987,294,848.83/647,894.84
  6. Step 6: Final answer
    x = 518,583.07

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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.