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Finding the Fourth Proportional to 704,880.82, 972,709.47 and 382,584.05

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Solution

The fourth proportional to 704,880.82, 972,709.47 and 382,584.05 is: 527,951.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,880.82 : 972,709.47 = 382,584.05 : x
  2. Step 2: Convert to fraction form
    704,880.82/972,709.47 = 382,584.05/x
  3. Step 3: Cross multiply
    704,880.82x = 972,709.47 × 382,584.05
  4. Step 4: Simplify right side
    704,880.82x = 372,143,128,505.95
  5. Step 5: Solve for x
    x = 372,143,128,505.95/704,880.82
  6. Step 6: Final answer
    x = 527,951.84

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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.