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Finding the Fourth Proportional to 479,980.13, 662,359.93 and 265,115.58

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Solution

The fourth proportional to 479,980.13, 662,359.93 and 265,115.58 is: 365,852.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,980.13 : 662,359.93 = 265,115.58 : x
  2. Step 2: Convert to fraction form
    479,980.13/662,359.93 = 265,115.58/x
  3. Step 3: Cross multiply
    479,980.13x = 662,359.93 × 265,115.58
  4. Step 4: Simplify right side
    479,980.13x = 175,601,939,081.12
  5. Step 5: Solve for x
    x = 175,601,939,081.12/479,980.13
  6. Step 6: Final answer
    x = 365,852.52

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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.