Home / 899,964.09-1,242,027.09-512,897.90

Finding the Fourth Proportional to 899,964.09, 1,242,027.09 and 512,897.90

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Solution

The fourth proportional to 899,964.09, 1,242,027.09 and 512,897.90 is: 707,842.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,964.09 : 1,242,027.09 = 512,897.90 : x
  2. Step 2: Convert to fraction form
    899,964.09/1,242,027.09 = 512,897.90/x
  3. Step 3: Cross multiply
    899,964.09x = 1,242,027.09 × 512,897.90
  4. Step 4: Simplify right side
    899,964.09x = 637,033,079,993.98
  5. Step 5: Solve for x
    x = 637,033,079,993.98/899,964.09
  6. Step 6: Final answer
    x = 707,842.78

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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.