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Finding the Fourth Proportional to 636,891.84, 878,918.22 and 364,954.32

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Solution

The fourth proportional to 636,891.84, 878,918.22 and 364,954.32 is: 503,641.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,891.84 : 878,918.22 = 364,954.32 : x
  2. Step 2: Convert to fraction form
    636,891.84/878,918.22 = 364,954.32/x
  3. Step 3: Cross multiply
    636,891.84x = 878,918.22 × 364,954.32
  4. Step 4: Simplify right side
    636,891.84x = 320,765,001,315.71
  5. Step 5: Solve for x
    x = 320,765,001,315.71/636,891.84
  6. Step 6: Final answer
    x = 503,641.25

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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.