Home / 856,209.47-1,284,784.41-496,819.76

Finding the Fourth Proportional to 856,209.47, 1,284,784.41 and 496,819.76

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Solution

The fourth proportional to 856,209.47, 1,284,784.41 and 496,819.76 is: 745,502.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,209.47 : 1,284,784.41 = 496,819.76 : x
  2. Step 2: Convert to fraction form
    856,209.47/1,284,784.41 = 496,819.76/x
  3. Step 3: Cross multiply
    856,209.47x = 1,284,784.41 × 496,819.76
  4. Step 4: Simplify right side
    856,209.47x = 638,306,285,439.90
  5. Step 5: Solve for x
    x = 638,306,285,439.90/856,209.47
  6. Step 6: Final answer
    x = 745,502.48

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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.