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Finding the Fourth Proportional to 418,108.84, 624,003.65 and 377,752.61

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Solution

The fourth proportional to 418,108.84, 624,003.65 and 377,752.61 is: 563,774.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,108.84 : 624,003.65 = 377,752.61 : x
  2. Step 2: Convert to fraction form
    418,108.84/624,003.65 = 377,752.61/x
  3. Step 3: Cross multiply
    418,108.84x = 624,003.65 × 377,752.61
  4. Step 4: Simplify right side
    418,108.84x = 235,719,008,524.85
  5. Step 5: Solve for x
    x = 235,719,008,524.85/418,108.84
  6. Step 6: Final answer
    x = 563,774.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.