Home / 1,420,850.64-1,960,775.40-776,281.44

Finding the Fourth Proportional to 1,420,850.64, 1,960,775.40 and 776,281.44

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Solution

The fourth proportional to 1,420,850.64, 1,960,775.40 and 776,281.44 is: 1,071,269.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,850.64 : 1,960,775.40 = 776,281.44 : x
  2. Step 2: Convert to fraction form
    1,420,850.64/1,960,775.40 = 776,281.44/x
  3. Step 3: Cross multiply
    1,420,850.64x = 1,960,775.40 × 776,281.44
  4. Step 4: Simplify right side
    1,420,850.64x = 1,522,113,551,028.58
  5. Step 5: Solve for x
    x = 1,522,113,551,028.58/1,420,850.64
  6. Step 6: Final answer
    x = 1,071,269.22

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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.