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Finding the Fourth Proportional to 1,377,029, 1,900,478.22 and 773,417

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Solution

The fourth proportional to 1,377,029, 1,900,478.22 and 773,417 is: 1,067,415.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,029 : 1,900,478.22 = 773,417 : x
  2. Step 2: Convert to fraction form
    1,377,029/1,900,478.22 = 773,417/x
  3. Step 3: Cross multiply
    1,377,029x = 1,900,478.22 × 773,417
  4. Step 4: Simplify right side
    1,377,029x = 1,469,862,163,477.74
  5. Step 5: Solve for x
    x = 1,469,862,163,477.74/1,377,029
  6. Step 6: Final answer
    x = 1,067,415.55

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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.