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Finding the Fourth Proportional to 448,372.60, 672,558.90 and 288,940.30

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Solution

The fourth proportional to 448,372.60, 672,558.90 and 288,940.30 is: 433,410.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,372.60 : 672,558.90 = 288,940.30 : x
  2. Step 2: Convert to fraction form
    448,372.60/672,558.90 = 288,940.30/x
  3. Step 3: Cross multiply
    448,372.60x = 672,558.90 × 288,940.30
  4. Step 4: Simplify right side
    448,372.60x = 194,329,370,333.67
  5. Step 5: Solve for x
    x = 194,329,370,333.67/448,372.60
  6. Step 6: Final answer
    x = 433,410.45

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1.5x scale

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.