Home / 769,921.60-1,062,472.32-430,421.44

Finding the Fourth Proportional to 769,921.60, 1,062,472.32 and 430,421.44

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Solution

The fourth proportional to 769,921.60, 1,062,472.32 and 430,421.44 is: 593,970.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,921.60 : 1,062,472.32 = 430,421.44 : x
  2. Step 2: Convert to fraction form
    769,921.60/1,062,472.32 = 430,421.44/x
  3. Step 3: Cross multiply
    769,921.60x = 1,062,472.32 × 430,421.44
  4. Step 4: Simplify right side
    769,921.60x = 457,310,865,934.54
  5. Step 5: Solve for x
    x = 457,310,865,934.54/769,921.60
  6. Step 6: Final answer
    x = 593,970.69

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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.