Home / 1,285,764.64-1,774,410.96-855,354.40

Finding the Fourth Proportional to 1,285,764.64, 1,774,410.96 and 855,354.40

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Solution

The fourth proportional to 1,285,764.64, 1,774,410.96 and 855,354.40 is: 1,180,426.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,764.64 : 1,774,410.96 = 855,354.40 : x
  2. Step 2: Convert to fraction form
    1,285,764.64/1,774,410.96 = 855,354.40/x
  3. Step 3: Cross multiply
    1,285,764.64x = 1,774,410.96 × 855,354.40
  4. Step 4: Simplify right side
    1,285,764.64x = 1,517,750,222,044.22
  5. Step 5: Solve for x
    x = 1,517,750,222,044.22/1,285,764.64
  6. Step 6: Final answer
    x = 1,180,426.16

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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.