Home / 727,360.50-1,003,685.58-405,100.58

Finding the Fourth Proportional to 727,360.50, 1,003,685.58 and 405,100.58

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Solution

The fourth proportional to 727,360.50, 1,003,685.58 and 405,100.58 is: 558,998.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,360.50 : 1,003,685.58 = 405,100.58 : x
  2. Step 2: Convert to fraction form
    727,360.50/1,003,685.58 = 405,100.58/x
  3. Step 3: Cross multiply
    727,360.50x = 1,003,685.58 × 405,100.58
  4. Step 4: Simplify right side
    727,360.50x = 406,593,610,595.64
  5. Step 5: Solve for x
    x = 406,593,610,595.64/727,360.50
  6. Step 6: Final answer
    x = 558,998.75

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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.