Home / 727,433.12-1,003,888.74-405,143.24

Finding the Fourth Proportional to 727,433.12, 1,003,888.74 and 405,143.24

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Solution

The fourth proportional to 727,433.12, 1,003,888.74 and 405,143.24 is: 559,114.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,433.12 : 1,003,888.74 = 405,143.24 : x
  2. Step 2: Convert to fraction form
    727,433.12/1,003,888.74 = 405,143.24/x
  3. Step 3: Cross multiply
    727,433.12x = 1,003,888.74 × 405,143.24
  4. Step 4: Simplify right side
    727,433.12x = 406,718,736,723.12
  5. Step 5: Solve for x
    x = 406,718,736,723.12/727,433.12
  6. Step 6: Final answer
    x = 559,114.96

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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.