Home / 933,954.84-1,399,242.75-428,938.28

Finding the Fourth Proportional to 933,954.84, 1,399,242.75 and 428,938.28

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Solution

The fourth proportional to 933,954.84, 1,399,242.75 and 428,938.28 is: 642,631.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    933,954.84 : 1,399,242.75 = 428,938.28 : x
  2. Step 2: Convert to fraction form
    933,954.84/1,399,242.75 = 428,938.28/x
  3. Step 3: Cross multiply
    933,954.84x = 1,399,242.75 × 428,938.28
  4. Step 4: Simplify right side
    933,954.84x = 600,188,771,491.26
  5. Step 5: Solve for x
    x = 600,188,771,491.26/933,954.84
  6. Step 6: Final answer
    x = 642,631.47

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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.