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Finding the Fourth Proportional to 672,484.21, 928,000.28 and 366,553.86

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Solution

The fourth proportional to 672,484.21, 928,000.28 and 366,553.86 is: 505,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,484.21 : 928,000.28 = 366,553.86 : x
  2. Step 2: Convert to fraction form
    672,484.21/928,000.28 = 366,553.86/x
  3. Step 3: Cross multiply
    672,484.21x = 928,000.28 × 366,553.86
  4. Step 4: Simplify right side
    672,484.21x = 340,162,082,151.46
  5. Step 5: Solve for x
    x = 340,162,082,151.46/672,484.21
  6. Step 6: Final answer
    x = 505,829.10

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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.