Home / 621,271.36-857,350.08-352,999.36

Finding the Fourth Proportional to 621,271.36, 857,350.08 and 352,999.36

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Solution

The fourth proportional to 621,271.36, 857,350.08 and 352,999.36 is: 487,136.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,271.36 : 857,350.08 = 352,999.36 : x
  2. Step 2: Convert to fraction form
    621,271.36/857,350.08 = 352,999.36/x
  3. Step 3: Cross multiply
    621,271.36x = 857,350.08 × 352,999.36
  4. Step 4: Simplify right side
    621,271.36x = 302,644,029,535.95
  5. Step 5: Solve for x
    x = 302,644,029,535.95/621,271.36
  6. Step 6: Final answer
    x = 487,136.62

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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.