Home / 765,383.85-1,056,375.95-506,804.72

Finding the Fourth Proportional to 765,383.85, 1,056,375.95 and 506,804.72

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Solution

The fourth proportional to 765,383.85, 1,056,375.95 and 506,804.72 is: 699,487.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,383.85 : 1,056,375.95 = 506,804.72 : x
  2. Step 2: Convert to fraction form
    765,383.85/1,056,375.95 = 506,804.72/x
  3. Step 3: Cross multiply
    765,383.85x = 1,056,375.95 × 506,804.72
  4. Step 4: Simplify right side
    765,383.85x = 535,376,309,738.58
  5. Step 5: Solve for x
    x = 535,376,309,738.58/765,383.85
  6. Step 6: Final answer
    x = 699,487.34

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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.