Home / 1,393,284.24-1,920,788.64-934,480.80

Finding the Fourth Proportional to 1,393,284.24, 1,920,788.64 and 934,480.80

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Solution

The fourth proportional to 1,393,284.24, 1,920,788.64 and 934,480.80 is: 1,288,279.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,393,284.24 : 1,920,788.64 = 934,480.80 : x
  2. Step 2: Convert to fraction form
    1,393,284.24/1,920,788.64 = 934,480.80/x
  3. Step 3: Cross multiply
    1,393,284.24x = 1,920,788.64 × 934,480.80
  4. Step 4: Simplify right side
    1,393,284.24x = 1,794,940,104,938.11
  5. Step 5: Solve for x
    x = 1,794,940,104,938.11/1,393,284.24
  6. Step 6: Final answer
    x = 1,288,279.92

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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.