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Finding the Fourth Proportional to 647,626.60, 893,725.62 and 357,231.68

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Solution

The fourth proportional to 647,626.60, 893,725.62 and 357,231.68 is: 492,980.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,626.60 : 893,725.62 = 357,231.68 : x
  2. Step 2: Convert to fraction form
    647,626.60/893,725.62 = 357,231.68/x
  3. Step 3: Cross multiply
    647,626.60x = 893,725.62 × 357,231.68
  4. Step 4: Simplify right side
    647,626.60x = 319,267,104,691.64
  5. Step 5: Solve for x
    x = 319,267,104,691.64/647,626.60
  6. Step 6: Final answer
    x = 492,980.22

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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.