Home / 1,139,326.58-1,571,018.68-731,274.28

Finding the Fourth Proportional to 1,139,326.58, 1,571,018.68 and 731,274.28

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Solution

The fourth proportional to 1,139,326.58, 1,571,018.68 and 731,274.28 is: 1,008,354.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,326.58 : 1,571,018.68 = 731,274.28 : x
  2. Step 2: Convert to fraction form
    1,139,326.58/1,571,018.68 = 731,274.28/x
  3. Step 3: Cross multiply
    1,139,326.58x = 1,571,018.68 × 731,274.28
  4. Step 4: Simplify right side
    1,139,326.58x = 1,148,845,554,083.55
  5. Step 5: Solve for x
    x = 1,148,845,554,083.55/1,139,326.58
  6. Step 6: Final answer
    x = 1,008,354.91

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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.