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Finding the Fourth Proportional to 657,182.20, 906,850 and 381,466.91

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Solution

The fourth proportional to 657,182.20, 906,850 and 381,466.91 is: 526,388.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,182.20 : 906,850 = 381,466.91 : x
  2. Step 2: Convert to fraction form
    657,182.20/906,850 = 381,466.91/x
  3. Step 3: Cross multiply
    657,182.20x = 906,850 × 381,466.91
  4. Step 4: Simplify right side
    657,182.20x = 345,933,267,333.50
  5. Step 5: Solve for x
    x = 345,933,267,333.50/657,182.20
  6. Step 6: Final answer
    x = 526,388.67

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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.