Home / 1,190,381.85-1,642,738.81-646,528.26

Finding the Fourth Proportional to 1,190,381.85, 1,642,738.81 and 646,528.26

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Solution

The fourth proportional to 1,190,381.85, 1,642,738.81 and 646,528.26 is: 892,215.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,381.85 : 1,642,738.81 = 646,528.26 : x
  2. Step 2: Convert to fraction form
    1,190,381.85/1,642,738.81 = 646,528.26/x
  3. Step 3: Cross multiply
    1,190,381.85x = 1,642,738.81 × 646,528.26
  4. Step 4: Simplify right side
    1,190,381.85x = 1,062,077,064,463.77
  5. Step 5: Solve for x
    x = 1,062,077,064,463.77/1,190,381.85
  6. Step 6: Final answer
    x = 892,215.44

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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.