Home / 2,590,941.66-3,885,570.42-861,347.22

Finding the Fourth Proportional to 2,590,941.66, 3,885,570.42 and 861,347.22

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Solution

The fourth proportional to 2,590,941.66, 3,885,570.42 and 861,347.22 is: 1,291,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,590,941.66 : 3,885,570.42 = 861,347.22 : x
  2. Step 2: Convert to fraction form
    2,590,941.66/3,885,570.42 = 861,347.22/x
  3. Step 3: Cross multiply
    2,590,941.66x = 3,885,570.42 × 861,347.22
  4. Step 4: Simplify right side
    2,590,941.66x = 3,346,825,279,381.23
  5. Step 5: Solve for x
    x = 3,346,825,279,381.23/2,590,941.66
  6. Step 6: Final answer
    x = 1,291,740.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.