Home / 727,445.87-1,003,906.46-405,156.05

Finding the Fourth Proportional to 727,445.87, 1,003,906.46 and 405,156.05

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Solution

The fourth proportional to 727,445.87, 1,003,906.46 and 405,156.05 is: 559,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,445.87 : 1,003,906.46 = 405,156.05 : x
  2. Step 2: Convert to fraction form
    727,445.87/1,003,906.46 = 405,156.05/x
  3. Step 3: Cross multiply
    727,445.87x = 1,003,906.46 × 405,156.05
  4. Step 4: Simplify right side
    727,445.87x = 406,738,773,877.30
  5. Step 5: Solve for x
    x = 406,738,773,877.30/727,445.87
  6. Step 6: Final answer
    x = 559,132.70

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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.