Home / 1,215,185.34-1,676,947.78-671,356.20

Finding the Fourth Proportional to 1,215,185.34, 1,676,947.78 and 671,356.20

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Solution

The fourth proportional to 1,215,185.34, 1,676,947.78 and 671,356.20 is: 926,467.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,185.34 : 1,676,947.78 = 671,356.20 : x
  2. Step 2: Convert to fraction form
    1,215,185.34/1,676,947.78 = 671,356.20/x
  3. Step 3: Cross multiply
    1,215,185.34x = 1,676,947.78 × 671,356.20
  4. Step 4: Simplify right side
    1,215,185.34x = 1,125,829,289,179.24
  5. Step 5: Solve for x
    x = 1,125,829,289,179.24/1,215,185.34
  6. Step 6: Final answer
    x = 926,467.14

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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.