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Finding the Fourth Proportional to 633,822.89, 874,676.35 and 343,434.23

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Solution

The fourth proportional to 633,822.89, 874,676.35 and 343,434.23 is: 473,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    633,822.89 : 874,676.35 = 343,434.23 : x
  2. Step 2: Convert to fraction form
    633,822.89/874,676.35 = 343,434.23/x
  3. Step 3: Cross multiply
    633,822.89x = 874,676.35 × 343,434.23
  4. Step 4: Simplify right side
    633,822.89x = 300,393,796,537.26
  5. Step 5: Solve for x
    x = 300,393,796,537.26/633,822.89
  6. Step 6: Final answer
    x = 473,939.65

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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.