Home / 1,420,903.68-1,960,788.78-776,346

Finding the Fourth Proportional to 1,420,903.68, 1,960,788.78 and 776,346

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Solution

The fourth proportional to 1,420,903.68, 1,960,788.78 and 776,346 is: 1,071,325.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,903.68 : 1,960,788.78 = 776,346 : x
  2. Step 2: Convert to fraction form
    1,420,903.68/1,960,788.78 = 776,346/x
  3. Step 3: Cross multiply
    1,420,903.68x = 1,960,788.78 × 776,346
  4. Step 4: Simplify right side
    1,420,903.68x = 1,522,250,526,197.88
  5. Step 5: Solve for x
    x = 1,522,250,526,197.88/1,420,903.68
  6. Step 6: Final answer
    x = 1,071,325.63

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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.