Home / 769,400.82-1,060,801.65-497,007.54

Finding the Fourth Proportional to 769,400.82, 1,060,801.65 and 497,007.54

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Solution

The fourth proportional to 769,400.82, 1,060,801.65 and 497,007.54 is: 685,242.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,400.82 : 1,060,801.65 = 497,007.54 : x
  2. Step 2: Convert to fraction form
    769,400.82/1,060,801.65 = 497,007.54/x
  3. Step 3: Cross multiply
    769,400.82x = 1,060,801.65 × 497,007.54
  4. Step 4: Simplify right side
    769,400.82x = 527,226,418,494.44
  5. Step 5: Solve for x
    x = 527,226,418,494.44/769,400.82
  6. Step 6: Final answer
    x = 685,242.86

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1.5x scale

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.