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Finding the Fourth Proportional to 636,526.26, 878,157.60 and 364,448.76

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Solution

The fourth proportional to 636,526.26, 878,157.60 and 364,448.76 is: 502,796.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,526.26 : 878,157.60 = 364,448.76 : x
  2. Step 2: Convert to fraction form
    636,526.26/878,157.60 = 364,448.76/x
  3. Step 3: Cross multiply
    636,526.26x = 878,157.60 × 364,448.76
  4. Step 4: Simplify right side
    636,526.26x = 320,043,448,404.58
  5. Step 5: Solve for x
    x = 320,043,448,404.58/636,526.26
  6. Step 6: Final answer
    x = 502,796.93

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Double scale
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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.