Home / 1,178,121.71-1,625,814.48-661,897.37

Finding the Fourth Proportional to 1,178,121.71, 1,625,814.48 and 661,897.37

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Solution

The fourth proportional to 1,178,121.71, 1,625,814.48 and 661,897.37 is: 913,422.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,121.71 : 1,625,814.48 = 661,897.37 : x
  2. Step 2: Convert to fraction form
    1,178,121.71/1,625,814.48 = 661,897.37/x
  3. Step 3: Cross multiply
    1,178,121.71x = 1,625,814.48 × 661,897.37
  4. Step 4: Simplify right side
    1,178,121.71x = 1,076,122,325,110.43
  5. Step 5: Solve for x
    x = 1,076,122,325,110.43/1,178,121.71
  6. Step 6: Final answer
    x = 913,422.03

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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.