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Finding the Fourth Proportional to 670,635.83, 925,008.99 and 455,402.23

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Solution

The fourth proportional to 670,635.83, 925,008.99 and 455,402.23 is: 628,136.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,635.83 : 925,008.99 = 455,402.23 : x
  2. Step 2: Convert to fraction form
    670,635.83/925,008.99 = 455,402.23/x
  3. Step 3: Cross multiply
    670,635.83x = 925,008.99 × 455,402.23
  4. Step 4: Simplify right side
    670,635.83x = 421,251,156,816.05
  5. Step 5: Solve for x
    x = 421,251,156,816.05/670,635.83
  6. Step 6: Final answer
    x = 628,136.97

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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.