Home / 494,927.60-742,391.40-345,628.40

Finding the Fourth Proportional to 494,927.60, 742,391.40 and 345,628.40

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Solution

The fourth proportional to 494,927.60, 742,391.40 and 345,628.40 is: 518,442.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,927.60 : 742,391.40 = 345,628.40 : x
  2. Step 2: Convert to fraction form
    494,927.60/742,391.40 = 345,628.40/x
  3. Step 3: Cross multiply
    494,927.60x = 742,391.40 × 345,628.40
  4. Step 4: Simplify right side
    494,927.60x = 256,591,551,755.76
  5. Step 5: Solve for x
    x = 256,591,551,755.76/494,927.60
  6. Step 6: Final answer
    x = 518,442.60

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1.5x scale

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.