Home / 1,214,258.32-1,675,643.12-670,384.20

Finding the Fourth Proportional to 1,214,258.32, 1,675,643.12 and 670,384.20

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Solution

The fourth proportional to 1,214,258.32, 1,675,643.12 and 670,384.20 is: 925,111.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,258.32 : 1,675,643.12 = 670,384.20 : x
  2. Step 2: Convert to fraction form
    1,214,258.32/1,675,643.12 = 670,384.20/x
  3. Step 3: Cross multiply
    1,214,258.32x = 1,675,643.12 × 670,384.20
  4. Step 4: Simplify right side
    1,214,258.32x = 1,123,324,672,486.70
  5. Step 5: Solve for x
    x = 1,123,324,672,486.70/1,214,258.32
  6. Step 6: Final answer
    x = 925,111.78

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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.