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Finding the Fourth Proportional to 800,565.58, 1,104,599.64 and 478,212.58

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Solution

The fourth proportional to 800,565.58, 1,104,599.64 and 478,212.58 is: 659,825.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,565.58 : 1,104,599.64 = 478,212.58 : x
  2. Step 2: Convert to fraction form
    800,565.58/1,104,599.64 = 478,212.58/x
  3. Step 3: Cross multiply
    800,565.58x = 1,104,599.64 × 478,212.58
  4. Step 4: Simplify right side
    800,565.58x = 528,233,443,711.47
  5. Step 5: Solve for x
    x = 528,233,443,711.47/800,565.58
  6. Step 6: Final answer
    x = 659,825.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.