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Finding the Fourth Proportional to 416,857.32, 575,461.44 and 279,273.15

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Solution

The fourth proportional to 416,857.32, 575,461.44 and 279,273.15 is: 385,529.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,857.32 : 575,461.44 = 279,273.15 : x
  2. Step 2: Convert to fraction form
    416,857.32/575,461.44 = 279,273.15/x
  3. Step 3: Cross multiply
    416,857.32x = 575,461.44 × 279,273.15
  4. Step 4: Simplify right side
    416,857.32x = 160,710,929,052.34
  5. Step 5: Solve for x
    x = 160,710,929,052.34/416,857.32
  6. Step 6: Final answer
    x = 385,529.82

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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.