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Finding the Fourth Proportional to 448,658.02, 672,123.30 and 353,384.20

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Solution

The fourth proportional to 448,658.02, 672,123.30 and 353,384.20 is: 529,395.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,658.02 : 672,123.30 = 353,384.20 : x
  2. Step 2: Convert to fraction form
    448,658.02/672,123.30 = 353,384.20/x
  3. Step 3: Cross multiply
    448,658.02x = 672,123.30 × 353,384.20
  4. Step 4: Simplify right side
    448,658.02x = 237,517,754,671.86
  5. Step 5: Solve for x
    x = 237,517,754,671.86/448,658.02
  6. Step 6: Final answer
    x = 529,395.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.