Home / 664,787.34-917,305.28-374,383.64

Finding the Fourth Proportional to 664,787.34, 917,305.28 and 374,383.64

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Solution

The fourth proportional to 664,787.34, 917,305.28 and 374,383.64 is: 516,592.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,787.34 : 917,305.28 = 374,383.64 : x
  2. Step 2: Convert to fraction form
    664,787.34/917,305.28 = 374,383.64/x
  3. Step 3: Cross multiply
    664,787.34x = 917,305.28 × 374,383.64
  4. Step 4: Simplify right side
    664,787.34x = 343,424,083,259.18
  5. Step 5: Solve for x
    x = 343,424,083,259.18/664,787.34
  6. Step 6: Final answer
    x = 516,592.39

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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.