Home / 740,648.97-1,021,813.79-547,520.36

Finding the Fourth Proportional to 740,648.97, 1,021,813.79 and 547,520.36

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Solution

The fourth proportional to 740,648.97, 1,021,813.79 and 547,520.36 is: 755,369.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,648.97 : 1,021,813.79 = 547,520.36 : x
  2. Step 2: Convert to fraction form
    740,648.97/1,021,813.79 = 547,520.36/x
  3. Step 3: Cross multiply
    740,648.97x = 1,021,813.79 × 547,520.36
  4. Step 4: Simplify right side
    740,648.97x = 559,463,846,307.09
  5. Step 5: Solve for x
    x = 559,463,846,307.09/740,648.97
  6. Step 6: Final answer
    x = 755,369.78

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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.