Home / 1,188,885.79-1,640,671.64-698,723.74

Finding the Fourth Proportional to 1,188,885.79, 1,640,671.64 and 698,723.74

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Solution

The fourth proportional to 1,188,885.79, 1,640,671.64 and 698,723.74 is: 964,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,885.79 : 1,640,671.64 = 698,723.74 : x
  2. Step 2: Convert to fraction form
    1,188,885.79/1,640,671.64 = 698,723.74/x
  3. Step 3: Cross multiply
    1,188,885.79x = 1,640,671.64 × 698,723.74
  4. Step 4: Simplify right side
    1,188,885.79x = 1,146,376,224,412.73
  5. Step 5: Solve for x
    x = 1,146,376,224,412.73/1,188,885.79
  6. Step 6: Final answer
    x = 964,244.20

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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.