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Finding the Fourth Proportional to 447,463.98, 617,809.22 and 418,878.27

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Solution

The fourth proportional to 447,463.98, 617,809.22 and 418,878.27 is: 578,341.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,463.98 : 617,809.22 = 418,878.27 : x
  2. Step 2: Convert to fraction form
    447,463.98/617,809.22 = 418,878.27/x
  3. Step 3: Cross multiply
    447,463.98x = 617,809.22 × 418,878.27
  4. Step 4: Simplify right side
    447,463.98x = 258,786,859,051.90
  5. Step 5: Solve for x
    x = 258,786,859,051.90/447,463.98
  6. Step 6: Final answer
    x = 578,341.21

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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.