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Finding the Fourth Proportional to 636,525.71, 878,428.58 and 364,646.15

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Solution

The fourth proportional to 636,525.71, 878,428.58 and 364,646.15 is: 503,224.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,525.71 : 878,428.58 = 364,646.15 : x
  2. Step 2: Convert to fraction form
    636,525.71/878,428.58 = 364,646.15/x
  3. Step 3: Cross multiply
    636,525.71x = 878,428.58 × 364,646.15
  4. Step 4: Simplify right side
    636,525.71x = 320,315,597,923.74
  5. Step 5: Solve for x
    x = 320,315,597,923.74/636,525.71
  6. Step 6: Final answer
    x = 503,224.92

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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.