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Finding the Fourth Proportional to 578,315.95, 796,650.02 and 491,998.48

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Solution

The fourth proportional to 578,315.95, 796,650.02 and 491,998.48 is: 677,744.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,315.95 : 796,650.02 = 491,998.48 : x
  2. Step 2: Convert to fraction form
    578,315.95/796,650.02 = 491,998.48/x
  3. Step 3: Cross multiply
    578,315.95x = 796,650.02 × 491,998.48
  4. Step 4: Simplify right side
    578,315.95x = 391,950,598,565.93
  5. Step 5: Solve for x
    x = 391,950,598,565.93/578,315.95
  6. Step 6: Final answer
    x = 677,744.75

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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.