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Finding the Fourth Proportional to 461,717.72, 637,181.16 and 289,642.92

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Solution

The fourth proportional to 461,717.72, 637,181.16 and 289,642.92 is: 399,713.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,717.72 : 637,181.16 = 289,642.92 : x
  2. Step 2: Convert to fraction form
    461,717.72/637,181.16 = 289,642.92/x
  3. Step 3: Cross multiply
    461,717.72x = 637,181.16 × 289,642.92
  4. Step 4: Simplify right side
    461,717.72x = 184,555,011,751.39
  5. Step 5: Solve for x
    x = 184,555,011,751.39/461,717.72
  6. Step 6: Final answer
    x = 399,713.95

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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.