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Finding the Fourth Proportional to 636,526.21, 878,429.27 and 364,646.65

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Solution

The fourth proportional to 636,526.21, 878,429.27 and 364,646.65 is: 503,225.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,526.21 : 878,429.27 = 364,646.65 : x
  2. Step 2: Convert to fraction form
    636,526.21/878,429.27 = 364,646.65/x
  3. Step 3: Cross multiply
    636,526.21x = 878,429.27 × 364,646.65
  4. Step 4: Simplify right side
    636,526.21x = 320,316,290,567.45
  5. Step 5: Solve for x
    x = 320,316,290,567.45/636,526.21
  6. Step 6: Final answer
    x = 503,225.61

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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.