Home / 1,985,454.50-2,739,874.03-1,125,996.31

Finding the Fourth Proportional to 1,985,454.50, 2,739,874.03 and 1,125,996.31

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Solution

The fourth proportional to 1,985,454.50, 2,739,874.03 and 1,125,996.31 is: 1,553,844.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,985,454.50 : 2,739,874.03 = 1,125,996.31 : x
  2. Step 2: Convert to fraction form
    1,985,454.50/2,739,874.03 = 1,125,996.31/x
  3. Step 3: Cross multiply
    1,985,454.50x = 2,739,874.03 × 1,125,996.31
  4. Step 4: Simplify right side
    1,985,454.50x = 3,085,088,037,980.15
  5. Step 5: Solve for x
    x = 3,085,088,037,980.15/1,985,454.50
  6. Step 6: Final answer
    x = 1,553,844.74

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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.