Home / 856,209.72-1,284,784.78-496,820.01

Finding the Fourth Proportional to 856,209.72, 1,284,784.78 and 496,820.01

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Solution

The fourth proportional to 856,209.72, 1,284,784.78 and 496,820.01 is: 745,502.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    856,209.72 : 1,284,784.78 = 496,820.01 : x
  2. Step 2: Convert to fraction form
    856,209.72/1,284,784.78 = 496,820.01/x
  3. Step 3: Cross multiply
    856,209.72x = 1,284,784.78 × 496,820.01
  4. Step 4: Simplify right side
    856,209.72x = 638,306,787,247.45
  5. Step 5: Solve for x
    x = 638,306,787,247.45/856,209.72
  6. Step 6: Final answer
    x = 745,502.85

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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.