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Finding the Fourth Proportional to 1,995,004.40, 2,992,895.40 and 857,764.40

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Solution

The fourth proportional to 1,995,004.40, 2,992,895.40 and 857,764.40 is: 1,286,813.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,995,004.40 : 2,992,895.40 = 857,764.40 : x
  2. Step 2: Convert to fraction form
    1,995,004.40/2,992,895.40 = 857,764.40/x
  3. Step 3: Cross multiply
    1,995,004.40x = 2,992,895.40 × 857,764.40
  4. Step 4: Simplify right side
    1,995,004.40x = 2,567,199,127,043.76
  5. Step 5: Solve for x
    x = 2,567,199,127,043.76/1,995,004.40
  6. Step 6: Final answer
    x = 1,286,813.77

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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.