Home / 727,458.12-1,003,923.36-405,168.30

Finding the Fourth Proportional to 727,458.12, 1,003,923.36 and 405,168.30

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Solution

The fourth proportional to 727,458.12, 1,003,923.36 and 405,168.30 is: 559,149.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,458.12 : 1,003,923.36 = 405,168.30 : x
  2. Step 2: Convert to fraction form
    727,458.12/1,003,923.36 = 405,168.30/x
  3. Step 3: Cross multiply
    727,458.12x = 1,003,923.36 × 405,168.30
  4. Step 4: Simplify right side
    727,458.12x = 406,757,921,101.49
  5. Step 5: Solve for x
    x = 406,757,921,101.49/727,458.12
  6. Step 6: Final answer
    x = 559,149.61

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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.