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Finding the Fourth Proportional to 768,363.51, 1,060,480.44 and 458,285.97

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Solution

The fourth proportional to 768,363.51, 1,060,480.44 and 458,285.97 is: 632,517.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,363.51 : 1,060,480.44 = 458,285.97 : x
  2. Step 2: Convert to fraction form
    768,363.51/1,060,480.44 = 458,285.97/x
  3. Step 3: Cross multiply
    768,363.51x = 1,060,480.44 × 458,285.97
  4. Step 4: Simplify right side
    768,363.51x = 486,003,307,111.43
  5. Step 5: Solve for x
    x = 486,003,307,111.43/768,363.51
  6. Step 6: Final answer
    x = 632,517.42

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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.