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Finding the Fourth Proportional to 631,934.82, 872,083.80 and 345,454.74

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Solution

The fourth proportional to 631,934.82, 872,083.80 and 345,454.74 is: 476,735.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,934.82 : 872,083.80 = 345,454.74 : x
  2. Step 2: Convert to fraction form
    631,934.82/872,083.80 = 345,454.74/x
  3. Step 3: Cross multiply
    631,934.82x = 872,083.80 × 345,454.74
  4. Step 4: Simplify right side
    631,934.82x = 301,265,482,387.21
  5. Step 5: Solve for x
    x = 301,265,482,387.21/631,934.82
  6. Step 6: Final answer
    x = 476,735.06

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1.5x scale

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.