Home / 996,938.20-1,495,601.70-428,318.20

Finding the Fourth Proportional to 996,938.20, 1,495,601.70 and 428,318.20

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Solution

The fourth proportional to 996,938.20, 1,495,601.70 and 428,318.20 is: 642,560.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    996,938.20 : 1,495,601.70 = 428,318.20 : x
  2. Step 2: Convert to fraction form
    996,938.20/1,495,601.70 = 428,318.20/x
  3. Step 3: Cross multiply
    996,938.20x = 1,495,601.70 × 428,318.20
  4. Step 4: Simplify right side
    996,938.20x = 640,593,428,060.94
  5. Step 5: Solve for x
    x = 640,593,428,060.94/996,938.20
  6. Step 6: Final answer
    x = 642,560.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.