Home / 727,382.70-1,003,819.26-405,092.80

Finding the Fourth Proportional to 727,382.70, 1,003,819.26 and 405,092.80

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Solution

The fourth proportional to 727,382.70, 1,003,819.26 and 405,092.80 is: 559,045.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,382.70 : 1,003,819.26 = 405,092.80 : x
  2. Step 2: Convert to fraction form
    727,382.70/1,003,819.26 = 405,092.80/x
  3. Step 3: Cross multiply
    727,382.70x = 1,003,819.26 × 405,092.80
  4. Step 4: Simplify right side
    727,382.70x = 406,639,957,501.20
  5. Step 5: Solve for x
    x = 406,639,957,501.20/727,382.70
  6. Step 6: Final answer
    x = 559,045.40

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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.