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Finding the Fourth Proportional to 425,717.42, 637,853.50 and 256,882.98

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Solution

The fourth proportional to 425,717.42, 637,853.50 and 256,882.98 is: 384,888.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,717.42 : 637,853.50 = 256,882.98 : x
  2. Step 2: Convert to fraction form
    425,717.42/637,853.50 = 256,882.98/x
  3. Step 3: Cross multiply
    425,717.42x = 637,853.50 × 256,882.98
  4. Step 4: Simplify right side
    425,717.42x = 163,853,707,883.43
  5. Step 5: Solve for x
    x = 163,853,707,883.43/425,717.42
  6. Step 6: Final answer
    x = 384,888.43

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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.