Home / 1,420,929.28-1,960,859.23-776,335.60

Finding the Fourth Proportional to 1,420,929.28, 1,960,859.23 and 776,335.60

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Solution

The fourth proportional to 1,420,929.28, 1,960,859.23 and 776,335.60 is: 1,071,330.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,929.28 : 1,960,859.23 = 776,335.60 : x
  2. Step 2: Convert to fraction form
    1,420,929.28/1,960,859.23 = 776,335.60/x
  3. Step 3: Cross multiply
    1,420,929.28x = 1,960,859.23 × 776,335.60
  4. Step 4: Simplify right side
    1,420,929.28x = 1,522,284,826,837.59
  5. Step 5: Solve for x
    x = 1,522,284,826,837.59/1,420,929.28
  6. Step 6: Final answer
    x = 1,071,330.47

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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.