Home / 727,607.08-1,004,128.03-405,317.09

Finding the Fourth Proportional to 727,607.08, 1,004,128.03 and 405,317.09

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Solution

The fourth proportional to 727,607.08, 1,004,128.03 and 405,317.09 is: 559,354.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,607.08 : 1,004,128.03 = 405,317.09 : x
  2. Step 2: Convert to fraction form
    727,607.08/1,004,128.03 = 405,317.09/x
  3. Step 3: Cross multiply
    727,607.08x = 1,004,128.03 × 405,317.09
  4. Step 4: Simplify right side
    727,607.08x = 406,990,254,124.00
  5. Step 5: Solve for x
    x = 406,990,254,124.00/727,607.08
  6. Step 6: Final answer
    x = 559,354.44

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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.