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Finding the Fourth Proportional to 448,522.60, 672,783.91 and 307,854.76

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Solution

The fourth proportional to 448,522.60, 672,783.91 and 307,854.76 is: 461,782.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,522.60 : 672,783.91 = 307,854.76 : x
  2. Step 2: Convert to fraction form
    448,522.60/672,783.91 = 307,854.76/x
  3. Step 3: Cross multiply
    448,522.60x = 672,783.91 × 307,854.76
  4. Step 4: Simplify right side
    448,522.60x = 207,119,729,144.91
  5. Step 5: Solve for x
    x = 207,119,729,144.91/448,522.60
  6. Step 6: Final answer
    x = 461,782.15

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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.