Home / 535,905.72-739,398.42-345,029.64

Finding the Fourth Proportional to 535,905.72, 739,398.42 and 345,029.64

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Solution

The fourth proportional to 535,905.72, 739,398.42 and 345,029.64 is: 476,043.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    535,905.72 : 739,398.42 = 345,029.64 : x
  2. Step 2: Convert to fraction form
    535,905.72/739,398.42 = 345,029.64/x
  3. Step 3: Cross multiply
    535,905.72x = 739,398.42 × 345,029.64
  4. Step 4: Simplify right side
    535,905.72x = 255,114,370,669.17
  5. Step 5: Solve for x
    x = 255,114,370,669.17/535,905.72
  6. Step 6: Final answer
    x = 476,043.38

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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.