Home / 494,928.10-742,392.15-345,628.90

Finding the Fourth Proportional to 494,928.10, 742,392.15 and 345,628.90

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Solution

The fourth proportional to 494,928.10, 742,392.15 and 345,628.90 is: 518,443.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    494,928.10 : 742,392.15 = 345,628.90 : x
  2. Step 2: Convert to fraction form
    494,928.10/742,392.15 = 345,628.90/x
  3. Step 3: Cross multiply
    494,928.10x = 742,392.15 × 345,628.90
  4. Step 4: Simplify right side
    494,928.10x = 256,592,182,173.14
  5. Step 5: Solve for x
    x = 256,592,182,173.14/494,928.10
  6. Step 6: Final answer
    x = 518,443.35

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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.