Home / 727,359.99-1,003,684.89-405,100.08

Finding the Fourth Proportional to 727,359.99, 1,003,684.89 and 405,100.08

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Solution

The fourth proportional to 727,359.99, 1,003,684.89 and 405,100.08 is: 558,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,359.99 : 1,003,684.89 = 405,100.08 : x
  2. Step 2: Convert to fraction form
    727,359.99/1,003,684.89 = 405,100.08/x
  3. Step 3: Cross multiply
    727,359.99x = 1,003,684.89 × 405,100.08
  4. Step 4: Simplify right side
    727,359.99x = 406,592,829,233.79
  5. Step 5: Solve for x
    x = 406,592,829,233.79/727,359.99
  6. Step 6: Final answer
    x = 558,998.07

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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.