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Finding the Fourth Proportional to 647,750.90, 893,891.23 and 357,374.71

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Solution

The fourth proportional to 647,750.90, 893,891.23 and 357,374.71 is: 493,174.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,750.90 : 893,891.23 = 357,374.71 : x
  2. Step 2: Convert to fraction form
    647,750.90/893,891.23 = 357,374.71/x
  3. Step 3: Cross multiply
    647,750.90x = 893,891.23 × 357,374.71
  4. Step 4: Simplify right side
    647,750.90x = 319,454,119,092.79
  5. Step 5: Solve for x
    x = 319,454,119,092.79/647,750.90
  6. Step 6: Final answer
    x = 493,174.33

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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.