Home / 727,356.12-1,003,679.56-405,096.20

Finding the Fourth Proportional to 727,356.12, 1,003,679.56 and 405,096.20

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Solution

The fourth proportional to 727,356.12, 1,003,679.56 and 405,096.20 is: 558,992.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,356.12 : 1,003,679.56 = 405,096.20 : x
  2. Step 2: Convert to fraction form
    727,356.12/1,003,679.56 = 405,096.20/x
  3. Step 3: Cross multiply
    727,356.12x = 1,003,679.56 × 405,096.20
  4. Step 4: Simplify right side
    727,356.12x = 406,586,775,773.67
  5. Step 5: Solve for x
    x = 406,586,775,773.67/727,356.12
  6. Step 6: Final answer
    x = 558,992.72

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1.5x scale

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.