Home / 1,210,612.80-1,815,481.80-490,652.40

Finding the Fourth Proportional to 1,210,612.80, 1,815,481.80 and 490,652.40

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Solution

The fourth proportional to 1,210,612.80, 1,815,481.80 and 490,652.40 is: 735,801.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,612.80 : 1,815,481.80 = 490,652.40 : x
  2. Step 2: Convert to fraction form
    1,210,612.80/1,815,481.80 = 490,652.40/x
  3. Step 3: Cross multiply
    1,210,612.80x = 1,815,481.80 × 490,652.40
  4. Step 4: Simplify right side
    1,210,612.80x = 890,770,502,326.32
  5. Step 5: Solve for x
    x = 890,770,502,326.32/1,210,612.80
  6. Step 6: Final answer
    x = 735,801.33

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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.