Home / 765,942.48-1,056,840.32-443,633.28

Finding the Fourth Proportional to 765,942.48, 1,056,840.32 and 443,633.28

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Solution

The fourth proportional to 765,942.48, 1,056,840.32 and 443,633.28 is: 612,121.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,942.48 : 1,056,840.32 = 443,633.28 : x
  2. Step 2: Convert to fraction form
    765,942.48/1,056,840.32 = 443,633.28/x
  3. Step 3: Cross multiply
    765,942.48x = 1,056,840.32 × 443,633.28
  4. Step 4: Simplify right side
    765,942.48x = 468,849,537,597.85
  5. Step 5: Solve for x
    x = 468,849,537,597.85/765,942.48
  6. Step 6: Final answer
    x = 612,121.08

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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.