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Finding the Fourth Proportional to 647,106.06, 893,009.36 and 375,334.86

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Solution

The fourth proportional to 647,106.06, 893,009.36 and 375,334.86 is: 517,963.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,106.06 : 893,009.36 = 375,334.86 : x
  2. Step 2: Convert to fraction form
    647,106.06/893,009.36 = 375,334.86/x
  3. Step 3: Cross multiply
    647,106.06x = 893,009.36 × 375,334.86
  4. Step 4: Simplify right side
    647,106.06x = 335,177,545,290.15
  5. Step 5: Solve for x
    x = 335,177,545,290.15/647,106.06
  6. Step 6: Final answer
    x = 517,963.85

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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.