Home / 3,111,221-4,293,487.86-1,680,437

Finding the Fourth Proportional to 3,111,221, 4,293,487.86 and 1,680,437

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Solution

The fourth proportional to 3,111,221, 4,293,487.86 and 1,680,437 is: 2,319,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,111,221 : 4,293,487.86 = 1,680,437 : x
  2. Step 2: Convert to fraction form
    3,111,221/4,293,487.86 = 1,680,437/x
  3. Step 3: Cross multiply
    3,111,221x = 4,293,487.86 × 1,680,437
  4. Step 4: Simplify right side
    3,111,221x = 7,214,935,858,994.82
  5. Step 5: Solve for x
    x = 7,214,935,858,994.82/3,111,221
  6. Step 6: Final answer
    x = 2,319,004.62

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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.