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Finding the Fourth Proportional to 448,750.61, 672,565.44 and 288,399.77

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Solution

The fourth proportional to 448,750.61, 672,565.44 and 288,399.77 is: 432,239.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,750.61 : 672,565.44 = 288,399.77 : x
  2. Step 2: Convert to fraction form
    448,750.61/672,565.44 = 288,399.77/x
  3. Step 3: Cross multiply
    448,750.61x = 672,565.44 × 288,399.77
  4. Step 4: Simplify right side
    448,750.61x = 193,967,722,229.92
  5. Step 5: Solve for x
    x = 193,967,722,229.92/448,750.61
  6. Step 6: Final answer
    x = 432,239.46

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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.