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Finding the Fourth Proportional to 510,560.31, 704,766.01 and 401,379.80

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Solution

The fourth proportional to 510,560.31, 704,766.01 and 401,379.80 is: 554,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,560.31 : 704,766.01 = 401,379.80 : x
  2. Step 2: Convert to fraction form
    510,560.31/704,766.01 = 401,379.80/x
  3. Step 3: Cross multiply
    510,560.31x = 704,766.01 × 401,379.80
  4. Step 4: Simplify right side
    510,560.31x = 282,878,838,133.70
  5. Step 5: Solve for x
    x = 282,878,838,133.70/510,560.31
  6. Step 6: Final answer
    x = 554,055.68

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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.