Home / 829,655.73-1,244,870.91-430,078.55

Finding the Fourth Proportional to 829,655.73, 1,244,870.91 and 430,078.55

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Solution

The fourth proportional to 829,655.73, 1,244,870.91 and 430,078.55 is: 645,318.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,655.73 : 1,244,870.91 = 430,078.55 : x
  2. Step 2: Convert to fraction form
    829,655.73/1,244,870.91 = 430,078.55/x
  3. Step 3: Cross multiply
    829,655.73x = 1,244,870.91 × 430,078.55
  4. Step 4: Simplify right side
    829,655.73x = 535,392,269,685.63
  5. Step 5: Solve for x
    x = 535,392,269,685.63/829,655.73
  6. Step 6: Final answer
    x = 645,318.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.