Home / 1,980,725.76-2,732,002.56-1,217,208.96

Finding the Fourth Proportional to 1,980,725.76, 2,732,002.56 and 1,217,208.96

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Solution

The fourth proportional to 1,980,725.76, 2,732,002.56 and 1,217,208.96 is: 1,678,888.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,980,725.76 : 2,732,002.56 = 1,217,208.96 : x
  2. Step 2: Convert to fraction form
    1,980,725.76/2,732,002.56 = 1,217,208.96/x
  3. Step 3: Cross multiply
    1,980,725.76x = 2,732,002.56 × 1,217,208.96
  4. Step 4: Simplify right side
    1,980,725.76x = 3,325,417,994,774.94
  5. Step 5: Solve for x
    x = 3,325,417,994,774.94/1,980,725.76
  6. Step 6: Final answer
    x = 1,678,888.65

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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.