Home / 1,078,258.70-1,617,111.27-319,920.77

Finding the Fourth Proportional to 1,078,258.70, 1,617,111.27 and 319,920.77

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Solution

The fourth proportional to 1,078,258.70, 1,617,111.27 and 319,920.77 is: 479,799.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,258.70 : 1,617,111.27 = 319,920.77 : x
  2. Step 2: Convert to fraction form
    1,078,258.70/1,617,111.27 = 319,920.77/x
  3. Step 3: Cross multiply
    1,078,258.70x = 1,617,111.27 × 319,920.77
  4. Step 4: Simplify right side
    1,078,258.70x = 517,347,486,716.86
  5. Step 5: Solve for x
    x = 517,347,486,716.86/1,078,258.70
  6. Step 6: Final answer
    x = 479,799.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.