Home / 494,597.20-742,017.30-139,606.60

Finding the Fourth Proportional to 494,597.20, 742,017.30 and 139,606.60

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Solution

The fourth proportional to 494,597.20, 742,017.30 and 139,606.60 is: 209,444.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,597.20 : 742,017.30 = 139,606.60 : x
  2. Step 2: Convert to fraction form
    494,597.20/742,017.30 = 139,606.60/x
  3. Step 3: Cross multiply
    494,597.20x = 742,017.30 × 139,606.60
  4. Step 4: Simplify right side
    494,597.20x = 103,590,512,394.18
  5. Step 5: Solve for x
    x = 103,590,512,394.18/494,597.20
  6. Step 6: Final answer
    x = 209,444.19

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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.