Home / 727,642.24-1,004,146.88-405,353.16

Finding the Fourth Proportional to 727,642.24, 1,004,146.88 and 405,353.16

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Solution

The fourth proportional to 727,642.24, 1,004,146.88 and 405,353.16 is: 559,387.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,642.24 : 1,004,146.88 = 405,353.16 : x
  2. Step 2: Convert to fraction form
    727,642.24/1,004,146.88 = 405,353.16/x
  3. Step 3: Cross multiply
    727,642.24x = 1,004,146.88 × 405,353.16
  4. Step 4: Simplify right side
    727,642.24x = 407,034,108,885.38
  5. Step 5: Solve for x
    x = 407,034,108,885.38/727,642.24
  6. Step 6: Final answer
    x = 559,387.69

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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.