Home / 1,312,020.51-1,810,643.45-731,243.91

Finding the Fourth Proportional to 1,312,020.51, 1,810,643.45 and 731,243.91

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Solution

The fourth proportional to 1,312,020.51, 1,810,643.45 and 731,243.91 is: 1,009,147.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,020.51 : 1,810,643.45 = 731,243.91 : x
  2. Step 2: Convert to fraction form
    1,312,020.51/1,810,643.45 = 731,243.91/x
  3. Step 3: Cross multiply
    1,312,020.51x = 1,810,643.45 × 731,243.91
  4. Step 4: Simplify right side
    1,312,020.51x = 1,324,021,992,337.67
  5. Step 5: Solve for x
    x = 1,324,021,992,337.67/1,312,020.51
  6. Step 6: Final answer
    x = 1,009,147.33

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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.