Home / 1,393,195.34-1,920,829.72-902,297.56

Finding the Fourth Proportional to 1,393,195.34, 1,920,829.72 and 902,297.56

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Solution

The fourth proportional to 1,393,195.34, 1,920,829.72 and 902,297.56 is: 1,244,017.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,195.34 : 1,920,829.72 = 902,297.56 : x
  2. Step 2: Convert to fraction form
    1,393,195.34/1,920,829.72 = 902,297.56/x
  3. Step 3: Cross multiply
    1,393,195.34x = 1,920,829.72 × 902,297.56
  4. Step 4: Simplify right side
    1,393,195.34x = 1,733,159,969,531.48
  5. Step 5: Solve for x
    x = 1,733,159,969,531.48/1,393,195.34
  6. Step 6: Final answer
    x = 1,244,017.92

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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.