Home / 874,687.09-1,312,105.82-243,600.91

Finding the Fourth Proportional to 874,687.09, 1,312,105.82 and 243,600.91

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Solution

The fourth proportional to 874,687.09, 1,312,105.82 and 243,600.91 is: 365,422.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,687.09 : 1,312,105.82 = 243,600.91 : x
  2. Step 2: Convert to fraction form
    874,687.09/1,312,105.82 = 243,600.91/x
  3. Step 3: Cross multiply
    874,687.09x = 1,312,105.82 × 243,600.91
  4. Step 4: Simplify right side
    874,687.09x = 319,630,171,768.30
  5. Step 5: Solve for x
    x = 319,630,171,768.30/874,687.09
  6. Step 6: Final answer
    x = 365,422.30

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1.5x scale

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.