Home / 874,834.56-1,311,785.28-453,064.32

Finding the Fourth Proportional to 874,834.56, 1,311,785.28 and 453,064.32

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Solution

The fourth proportional to 874,834.56, 1,311,785.28 and 453,064.32 is: 679,354.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,834.56 : 1,311,785.28 = 453,064.32 : x
  2. Step 2: Convert to fraction form
    874,834.56/1,311,785.28 = 453,064.32/x
  3. Step 3: Cross multiply
    874,834.56x = 1,311,785.28 × 453,064.32
  4. Step 4: Simplify right side
    874,834.56x = 594,323,105,869.21
  5. Step 5: Solve for x
    x = 594,323,105,869.21/874,834.56
  6. Step 6: Final answer
    x = 679,354.86

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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.