Home / 1,420,927.84-1,960,857.54-776,334.20

Finding the Fourth Proportional to 1,420,927.84, 1,960,857.54 and 776,334.20

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Solution

The fourth proportional to 1,420,927.84, 1,960,857.54 and 776,334.20 is: 1,071,328.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,927.84 : 1,960,857.54 = 776,334.20 : x
  2. Step 2: Convert to fraction form
    1,420,927.84/1,960,857.54 = 776,334.20/x
  3. Step 3: Cross multiply
    1,420,927.84x = 1,960,857.54 × 776,334.20
  4. Step 4: Simplify right side
    1,420,927.84x = 1,522,280,769,629.87
  5. Step 5: Solve for x
    x = 1,522,280,769,629.87/1,420,927.84
  6. Step 6: Final answer
    x = 1,071,328.70

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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.