Home / 1,211,411.28-1,671,820.74-667,546.14

Finding the Fourth Proportional to 1,211,411.28, 1,671,820.74 and 667,546.14

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Solution

The fourth proportional to 1,211,411.28, 1,671,820.74 and 667,546.14 is: 921,254.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,411.28 : 1,671,820.74 = 667,546.14 : x
  2. Step 2: Convert to fraction form
    1,211,411.28/1,671,820.74 = 667,546.14/x
  3. Step 3: Cross multiply
    1,211,411.28x = 1,671,820.74 × 667,546.14
  4. Step 4: Simplify right side
    1,211,411.28x = 1,116,017,481,758.94
  5. Step 5: Solve for x
    x = 1,116,017,481,758.94/1,211,411.28
  6. Step 6: Final answer
    x = 921,254.00

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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.