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Finding the Fourth Proportional to 626,571.96, 864,463.50 and 354,612.84

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Solution

The fourth proportional to 626,571.96, 864,463.50 and 354,612.84 is: 489,249.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,571.96 : 864,463.50 = 354,612.84 : x
  2. Step 2: Convert to fraction form
    626,571.96/864,463.50 = 354,612.84/x
  3. Step 3: Cross multiply
    626,571.96x = 864,463.50 × 354,612.84
  4. Step 4: Simplify right side
    626,571.96x = 306,549,856,811.34
  5. Step 5: Solve for x
    x = 306,549,856,811.34/626,571.96
  6. Step 6: Final answer
    x = 489,249.24

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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.