Home / 1,139,345.88-1,571,045.33-731,293.60

Finding the Fourth Proportional to 1,139,345.88, 1,571,045.33 and 731,293.60

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Solution

The fourth proportional to 1,139,345.88, 1,571,045.33 and 731,293.60 is: 1,008,381.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,345.88 : 1,571,045.33 = 731,293.60 : x
  2. Step 2: Convert to fraction form
    1,139,345.88/1,571,045.33 = 731,293.60/x
  3. Step 3: Cross multiply
    1,139,345.88x = 1,571,045.33 × 731,293.60
  4. Step 4: Simplify right side
    1,139,345.88x = 1,148,895,393,039.51
  5. Step 5: Solve for x
    x = 1,148,895,393,039.51/1,139,345.88
  6. Step 6: Final answer
    x = 1,008,381.58

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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.