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Finding the Fourth Proportional to 345,994.84, 477,291.57 and 300,570.85

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Solution

The fourth proportional to 345,994.84, 477,291.57 and 300,570.85 is: 414,630.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,994.84 : 477,291.57 = 300,570.85 : x
  2. Step 2: Convert to fraction form
    345,994.84/477,291.57 = 300,570.85/x
  3. Step 3: Cross multiply
    345,994.84x = 477,291.57 × 300,570.85
  4. Step 4: Simplify right side
    345,994.84x = 143,459,930,506.28
  5. Step 5: Solve for x
    x = 143,459,930,506.28/345,994.84
  6. Step 6: Final answer
    x = 414,630.27

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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.