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Finding the Fourth Proportional to 664,701.76, 917,283.75 and 362,895.76

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Solution

The fourth proportional to 664,701.76, 917,283.75 and 362,895.76 is: 500,793.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,701.76 : 917,283.75 = 362,895.76 : x
  2. Step 2: Convert to fraction form
    664,701.76/917,283.75 = 362,895.76/x
  3. Step 3: Cross multiply
    664,701.76x = 917,283.75 × 362,895.76
  4. Step 4: Simplify right side
    664,701.76x = 332,878,383,591.90
  5. Step 5: Solve for x
    x = 332,878,383,591.90/664,701.76
  6. Step 6: Final answer
    x = 500,793.59

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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.