Home / 769,124.32-1,152,869.52-453,729.76

Finding the Fourth Proportional to 769,124.32, 1,152,869.52 and 453,729.76

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Solution

The fourth proportional to 769,124.32, 1,152,869.52 and 453,729.76 is: 680,112.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,124.32 : 1,152,869.52 = 453,729.76 : x
  2. Step 2: Convert to fraction form
    769,124.32/1,152,869.52 = 453,729.76/x
  3. Step 3: Cross multiply
    769,124.32x = 1,152,869.52 × 453,729.76
  4. Step 4: Simplify right side
    769,124.32x = 523,091,210,620.92
  5. Step 5: Solve for x
    x = 523,091,210,620.92/769,124.32
  6. Step 6: Final answer
    x = 680,112.69

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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.