Home / 1,420,865.60-1,960,736.32-776,308.08

Finding the Fourth Proportional to 1,420,865.60, 1,960,736.32 and 776,308.08

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Solution

The fourth proportional to 1,420,865.60, 1,960,736.32 and 776,308.08 is: 1,071,273.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,865.60 : 1,960,736.32 = 776,308.08 : x
  2. Step 2: Convert to fraction form
    1,420,865.60/1,960,736.32 = 776,308.08/x
  3. Step 3: Cross multiply
    1,420,865.60x = 1,960,736.32 × 776,308.08
  4. Step 4: Simplify right side
    1,420,865.60x = 1,522,135,447,965.47
  5. Step 5: Solve for x
    x = 1,522,135,447,965.47/1,420,865.60
  6. Step 6: Final answer
    x = 1,071,273.35

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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.