Home / 1,145,040.32-1,580,040.16-635,687.36

Finding the Fourth Proportional to 1,145,040.32, 1,580,040.16 and 635,687.36

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Solution

The fourth proportional to 1,145,040.32, 1,580,040.16 and 635,687.36 is: 877,184.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,145,040.32 : 1,580,040.16 = 635,687.36 : x
  2. Step 2: Convert to fraction form
    1,145,040.32/1,580,040.16 = 635,687.36/x
  3. Step 3: Cross multiply
    1,145,040.32x = 1,580,040.16 × 635,687.36
  4. Step 4: Simplify right side
    1,145,040.32x = 1,004,411,558,004.38
  5. Step 5: Solve for x
    x = 1,004,411,558,004.38/1,145,040.32
  6. Step 6: Final answer
    x = 877,184.45

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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.