Home / 933,130.08-1,398,005.46-428,113.44

Finding the Fourth Proportional to 933,130.08, 1,398,005.46 and 428,113.44

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Solution

The fourth proportional to 933,130.08, 1,398,005.46 and 428,113.44 is: 641,394.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,130.08 : 1,398,005.46 = 428,113.44 : x
  2. Step 2: Convert to fraction form
    933,130.08/1,398,005.46 = 428,113.44/x
  3. Step 3: Cross multiply
    933,130.08x = 1,398,005.46 × 428,113.44
  4. Step 4: Simplify right side
    933,130.08x = 598,504,926,619.38
  5. Step 5: Solve for x
    x = 598,504,926,619.38/933,130.08
  6. Step 6: Final answer
    x = 641,394.96

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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.