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Finding the Fourth Proportional to 672,485.46, 928,002.01 and 366,555.11

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Solution

The fourth proportional to 672,485.46, 928,002.01 and 366,555.11 is: 505,830.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,485.46 : 928,002.01 = 366,555.11 : x
  2. Step 2: Convert to fraction form
    672,485.46/928,002.01 = 366,555.11/x
  3. Step 3: Cross multiply
    672,485.46x = 928,002.01 × 366,555.11
  4. Step 4: Simplify right side
    672,485.46x = 340,163,877,023.00
  5. Step 5: Solve for x
    x = 340,163,877,023.00/672,485.46
  6. Step 6: Final answer
    x = 505,830.83

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Double scale
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Similar ratio
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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.