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Finding the Fourth Proportional to 579,800.43, 800,123.06 and 325,157.09

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Solution

The fourth proportional to 579,800.43, 800,123.06 and 325,157.09 is: 448,715.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,800.43 : 800,123.06 = 325,157.09 : x
  2. Step 2: Convert to fraction form
    579,800.43/800,123.06 = 325,157.09/x
  3. Step 3: Cross multiply
    579,800.43x = 800,123.06 × 325,157.09
  4. Step 4: Simplify right side
    579,800.43x = 260,165,682,643.77
  5. Step 5: Solve for x
    x = 260,165,682,643.77/579,800.43
  6. Step 6: Final answer
    x = 448,715.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.