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Finding the Fourth Proportional to 636,851.94, 878,855.64 and 350,365.88

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Solution

The fourth proportional to 636,851.94, 878,855.64 and 350,365.88 is: 483,504.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,851.94 : 878,855.64 = 350,365.88 : x
  2. Step 2: Convert to fraction form
    636,851.94/878,855.64 = 350,365.88/x
  3. Step 3: Cross multiply
    636,851.94x = 878,855.64 × 350,365.88
  4. Step 4: Simplify right side
    636,851.94x = 307,921,025,307.29
  5. Step 5: Solve for x
    x = 307,921,025,307.29/636,851.94
  6. Step 6: Final answer
    x = 483,504.89

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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.