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Finding the Fourth Proportional to 448,659.02, 672,124.80 and 353,385.20

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Solution

The fourth proportional to 448,659.02, 672,124.80 and 353,385.20 is: 529,397.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,659.02 : 672,124.80 = 353,385.20 : x
  2. Step 2: Convert to fraction form
    448,659.02/672,124.80 = 353,385.20/x
  3. Step 3: Cross multiply
    448,659.02x = 672,124.80 × 353,385.20
  4. Step 4: Simplify right side
    448,659.02x = 237,518,956,872.96
  5. Step 5: Solve for x
    x = 237,518,956,872.96/448,659.02
  6. Step 6: Final answer
    x = 529,397.49

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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.