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Finding the Fourth Proportional to 478,817.51, 660,763.83 and 263,957.58

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Solution

The fourth proportional to 478,817.51, 660,763.83 and 263,957.58 is: 364,259.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,817.51 : 660,763.83 = 263,957.58 : x
  2. Step 2: Convert to fraction form
    478,817.51/660,763.83 = 263,957.58/x
  3. Step 3: Cross multiply
    478,817.51x = 660,763.83 × 263,957.58
  4. Step 4: Simplify right side
    478,817.51x = 174,413,622,508.17
  5. Step 5: Solve for x
    x = 174,413,622,508.17/478,817.51
  6. Step 6: Final answer
    x = 364,259.07

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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.