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Finding the Fourth Proportional to 664,432.56, 916,903.92 and 362,628.72

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Solution

The fourth proportional to 664,432.56, 916,903.92 and 362,628.72 is: 500,420.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,432.56 : 916,903.92 = 362,628.72 : x
  2. Step 2: Convert to fraction form
    664,432.56/916,903.92 = 362,628.72/x
  3. Step 3: Cross multiply
    664,432.56x = 916,903.92 × 362,628.72
  4. Step 4: Simplify right side
    664,432.56x = 332,495,694,872.58
  5. Step 5: Solve for x
    x = 332,495,694,872.58/664,432.56
  6. Step 6: Final answer
    x = 500,420.53

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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.