Home / 1,348,120.92-1,857,242.34-939,479.88

Finding the Fourth Proportional to 1,348,120.92, 1,857,242.34 and 939,479.88

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Solution

The fourth proportional to 1,348,120.92, 1,857,242.34 and 939,479.88 is: 1,294,276.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,120.92 : 1,857,242.34 = 939,479.88 : x
  2. Step 2: Convert to fraction form
    1,348,120.92/1,857,242.34 = 939,479.88/x
  3. Step 3: Cross multiply
    1,348,120.92x = 1,857,242.34 × 939,479.88
  4. Step 4: Simplify right side
    1,348,120.92x = 1,744,841,810,714.12
  5. Step 5: Solve for x
    x = 1,744,841,810,714.12/1,348,120.92
  6. Step 6: Final answer
    x = 1,294,276.93

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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.